It looks like it’s in neutral but it won’t push over to 5th gear or reverse and won’t go into any other gears because it’s stuck in 5th for some reason. We also offer a number or upgrades for your NV4500 including: Cryogenic treated shafts and gears will add 30% more strength to those transmission parts. The tranny is the NV4500. Dodge NV4500 4X4 5th Gear Fix. Nv4500 upgraded 5th gear nut. Since you have the dampener, if you plan to retain it in its entirety, you will need the socket for the 5th gear nut (more expensive than the wrench). NV4500 5th gear failure has anyone heard or used this fix?. It really takes a good deal of force to get it out of gear when it does this. Ram 2500 Cummins: my nv4500 is stuck in reverse, shifter will…. First introduced in 1992, the NV4500 is a constant mesh helical geared, heavy duty 5 speed transmission. DODGE CUMMINS NV4500 5th gear FIX ! ALLAN KELLER 382 subscribers Subscribe 142 Share 82K views 10 years ago THE PLACE IS http://fifthgearrepair. 9K subscribers Subscribe Like 40K views 6 years ago 1999 2wd Dodge 2500 Ram pickup with a 5. Used a screw driver to put the middle gate back in neutral, and reassembled. Hard to tell what is causing that without opening the tranny up. you may have to remove back housing and check 5th gear shifting fork. in fifth gear both input and mainshaft run nearly the same speed and the needle bearing hardly moves. Vibration and cyclic loads are the main causes of fretting. NV4500 stuck in 4th gear Facebook; Youtube; TikTok; Instagram; Quadzilla Tunes. 95 dodge: nv4500 trans and we put a new clutch. also check the two roll pins in shifting fork. Remove the driveshaft,transfer case, and then the tail shaft housing from the trans and there is 5th gear. NV4500 5th gear failure has anyone heard or used this fix?>NV4500 5th gear failure has anyone heard or used this fix?. Fifth Gear And The Dodge NV4500. 2F might not have enough guts to turn an NV4500 in 5th gear (especially with the 3. I have a 99 dodge with a nv4500 and recently it was poping out of 5th gear when you would let completely off the throttle now one day it came out it would go in 5th. The transmission was in 4th, but the shifter was not in the gate. The New Venture 4500 (NV4500) five-speed manual transmission was manufactured by New Venture Gear and installed at the factory in Chrysler and General Motors trucks between model years 1991-2007. 25 Add to Cart Buy Now Ask Question Aftermarket Parts 23712 NV4500 Mainshaft 3rd Gear-Aftermarket $114. You already have the NV4500 adaptors. This eventually lets 5th gear move around and walk the nut off. Basically the nut that holds 5thgear backs off. Ive never seen this setup fail. NV4500 Transmission Exploded View. Read all about how we rebuild an old NV4500 Manual Transmission and fix the Dodge fifth gear problem in Four Wheeler Magazine! News. 4 million miles with un-additized diesel fuel. From the factory the dodge mainshafts are only splined for maybe 1/3 of the lenght of 5th gear. According to the folks at Rockland Standard Gear, the Dodge NV4500 had a design defect in the splines on the mainshaft Fifth Gear. I belive that this is the right part number 5013887-AA. NV4500 DODGE HD INPUT1 1/4-10 $148. My nv4500 is stuck in reverse, shifter will slide between. A quick google search is what i did on my smart phone to diagnose it on the side of. The best fifth gear fix for the NV4500 is to make SURE you have the FACTORY shaft, not the aftermarket updated shaft, and then use TWO nuts on the fifth gear, put purple threadlocker on the threads, and make sure the outside nut has a locking collar, i. NV4500 5 Speed Manual Transmission. 2F might not have enough guts to turn an NV4500 in 5th gear (especially with the 3. 61K subscribers 27K views 2 years ago Heres. Show more Show more Almost yours: 2 weeks, on us 100+ live channels. i put a small wire through them so they cant come. 5th gear backing off the shaft. you may have to remove back housing and check 5th gear shifting fork. Usually it either blows up 5th gear or it gets stuck in 5th gear. Its unique synchro ring composition requires a special synthetic lubricant. The guy told me that this happens alot to nv4500s. Nv4500 5th gear not engaging fix. The NV4500 shifter will have a short stub sticking up from the top cover, There are 3 different methods by which a shifter extension handle attaches: Dodge NV4500 1993-1999 A short, square stub sticks up Dodge NV4500 1999-up Threaded stub, 14mm x 1. Dodge NV4500 Master Rebuild Kit with 5th Gear 2WD, Inc. I had to fix the 5th gear in my truck to. The best fifth gear fix for the NV4500 is to make SURE you have the FACTORY shaft, not the aftermarket updated shaft, and then use TWO nuts on the fifth gear, put purple threadlocker on the threads, and make sure the outside nut has a locking collar, i. I had to fix the 5th gear in my truck to. The theory on the NV4500 5th gear/nut issue is that the Dodges saw more failures because the 5. Doing some searching on the net, it appears the 5th gear nut might be culprit. Remove the driveshaft,transfer case, and then the tail shaft housing from the trans and there is 5th gear. NV4500 Specifications / Tech Vault / Advance Adapters Reply Like 10-10-2017, 12:03. The best fifth gear fix for the NV4500 is to make SURE you have the FACTORY shaft, not the aftermarket updated shaft, and then use TWO nuts on the fifth gear, put purple threadlocker on the threads, and make sure the outside nut has a locking collar, i. If the pinion angle is wrong you will get a heavy shudder during acceleration. The problem is the axial clearance in the 5th gear selector on the counter balance shaft. Some people just loose 5th all together while others get stuck in it like me. 9 cummins motors with that bolt pattern, i do know the flywheels from a NV4500 are not the same diameter as a NV5600, alot of people have that impression, friend had it too and put one in his 6 speed 2003 CR pulling truck in 2004 when he cooked the clutch, starter wouldnt. The best fifth gear fix for the NV4500 is to make SURE you have the FACTORY shaft, not the aftermarket updated shaft, and then use TWO nuts on the. DIXIEDIRT. There is info out there just try a few quick key words. Honestly, thats a tough question, mostly because you apparently already have one of the most desirable manual transmissions for any off-road vehicle. History New Venture Gear was the somewhat. 5th gear backing off the shaft. Typical 5th gear failure on a stock NV4500HD transmission. The fully synchronized NV4500 is a top-loaded iron-cased manual transmission (with overdrive) with an aluminum top cover and a PTO (power take off) port on both the drivers side and passengers side. The solution is also simple, increase support. This eventually lets 5th gear move around and walk the nut off. NV4500 Suddenly Hard Shifting 5th gear. 25 Add to Cart Buy Now Ask Question Aftermarket Parts NV16853. Note the reddish/orange sludge discoloring the shaft. This transmission has also been a favorite for upgrades/conversions on various SUVs and pickup trucks made by Ford, Jeep, Toyota,. My nv4500 was starting to get hard to pull out of 5th gear. Remove the driveshaft,transfer case, and then the tail shaft housing from the trans and there is 5th gear. 4 inch turbo back straight pipe. The transmission was in 4th, but the shifter was not in the gate. NV4500 Countershaft 5th Gear-Aftermarket $166. The problem is the axial clearance in the 5th gear selector on the counter balance shaft. Nv4500 stuck in gear Need Help!. I just finished my NV4500 swap, and all seems well except that the trans doesnt want to come out of 5th gear after it has been highway cruising for a while. You can buy a kit that replacesthe output shaft and fixes the nut issue, I think its around $350. I need to keep this tranny going for a little longer. CF12Valve 07-13-2015, 12:22 PM. Started the second million on 8/24/13 If you are lucky enough to be in Texas, you are lucky enough. 29 45-0012 SEAL- RETAINER NV3550 JEEP $2. NV4500 Countershaft 5th Gear-Aftermarket $166. The root cause of NV4500 mainshaft fifth gear failures is simply insufficient support for the fifth gear under real world conditions. I have a nv4500 on my 1994 12v Cummins, it’s all stock except the transmission was put in by a professional before I got it. A quick google search is what i did on my smart phone to diagnose it on the side of the road. 1> remove the driveshaft, 2> unbolt the mount from the crossmember, 3> lift and support the transmission with a jack, 4> remove the mount/mount plate from between the tailhousing and the crossmember. yes, they will bolt to all of the 5. Its a fairly big transmission, but its still only 1 inch longer than an NV4500. It will stick 5th and not want to shift out if I try to shift immediately after stepping on the clutch. The NV4500 shifter will have a short stub sticking up from the top cover, There are 3 different methods by which a shifter extension handle attaches: Dodge NV4500 1993-1999 A short, square stub sticks up Dodge NV4500 1999-up Threaded stub, 14mm x 1. Usually it either blows up 5th gear or it gets stuck in 5th gear. Upgraded main shaft with increased rear spline length by 1 inch and utilizes a retaining clip will guarantee 100% sure fix to this premature failure mode, i. But to answer your questions,. Note the NV4500 GVWR at the end: 1. Go to your local dodge dealer they can print you of a diagram of it, while your there you might as well order the fix kit for it. NV4500 Transmission Problems & Solutions. Go to your local dodge dealer they can print you of a diagram of it, while your there you might as well order the fix kit for it. It really takes a good deal of force to get it out of gear when it does this. I run Valvoline, Chrysler-spec MTF, one quart high. Having problems with Fifth Gear in your Dodge NV4500? There is a fix. Accoding to the PO, the truck had a rebuilt nv4500 with the 5th gear repair done during reassembly. The NV4500 or New Venture Gear 4500 is a heavy-duty, manual shift, five-speed overdrive, longitudinally positioned transmission. What you see is actually oxidized. Over time, the gear tries to rock on the splines & wears looser working the nut off. The fact that fifth gear as you say seems the quiest makes me think the needle bearing in the end of the input shaft where it supports the mainshaft has an issue. The 5th gear syncro/selector then slides towards the end of the shaft, taking up the clearance until it bottoms out on the snap ring. 48 403502 SHAFT-NV4500 2WD DIESEL/V10 OUTPUT SHAFT W/SPEEDO $197. you may have to remove back housing and check 5th gear shifting fork. you may have to remove back housing and check 5th gear shifting fork. The Novak Guide to the NV4500 Transmission. The best fifth gear fix for the NV4500 is to make SURE you have the FACTORY shaft, not the aftermarket updated shaft, and then use TWO nuts on the fifth gear, put purple threadlocker on the threads, and make sure the outside nut has a locking collar, i. I installed the FAST Coolers on my NV5600 when I bought the truck. However, no tailshaft adapters are currently available to marry it to a transfer case. 5th Gear Lock Nut Retainer Kit & 1/2 Drive Mainshaft 5th Gear Nut Wrench Suitable for 1994-2004 Dodge Cummins NV4500 Transmission (8-Pack) Brand: Bonbo 23 ratings $3750 FREE Returns About this item 【High Quality Material】Made form quality steel, wear and corrosion resistance, anti-rust, impact resistance, sturdy and durable. So we were stuck either. 5 dodge diesel nv4500 but now my 241 dhd transfer case seems to be stuck between 2H and 4H (wont shift into N either). 97 3500, 2 WD, G56, slightly bombed, 1. To provide a practical and customer installable design at a reasonable cost was the challenge. My nv4500 lost 5th gear today. Basically the nut that holds 5thgear backs off. You can buy a kit that replacesthe output shaft and fixes the nut issue, I think its around $350. THE PLACE IShttp://fifthgearrepair. Happens mostly on trucks that do lots of towing. 2K views 2 years ago Ever wonder how to keep that pesky 5th gear nut to stay on your NV4500? Here is how we do it! Retroformance walks you through our procedure that has. Typical 5th gear failure on a stock NV4500HD transmission. All of the 5th gear related parts are new. NV4500 DODGE HD INPUT1 1/4-10 $148. It would bolt up to your engine and transfer case. NV4500? 5 speed 3rd gear synchro going out? 1994 K3500. Accoding to the PO, the truck had a rebuilt nv4500 with the 5th gear repair done during reassembly. Usually it either blows up 5th gear or it gets stuck in 5th gear. Jan 17, 2020 #5 Gr8bawana Senior Member Joined Dec 7, 2015 Posts 1,192 Reaction score 929 Ram Year 2017 Engine 6. how to fix stuck manual transmission. Since you have the dampener, if you plan to retain it in its entirety, you will need the socket for the 5th gear nut (more expensive than the wrench). 5th gear I have a 95 dodge diesel with the nv4500 trans and we put a new clutch in it today. Actually this is fairly common. 00 Category NV4500 & NV3550 (33) OEM Equipment (2) Release Bearings & Retainers (2) Jeep Dana 300 (1). You can take a look at it without pulling the trans. NV4500 stuck in 4th gear. You will need a 12-pt 10mm socket for the tailshaft bolts. This housing contains fifth gear and as usual, 2wd style housings are longer. Typical 5th gear failure on a stock NV4500HD transmission. the GM version is the NV4500LD, which has a lower GCWR than the HD version (19K vs 21K, afaik). the little key ways that 5th gear slides on wear out and get sloppy and will stick when you shift it into 5th preventing you from getting it out of 5th. Fifth Gear And The Dodge NV4500. 111 Share 6. Truck broke down in Memphis. html ***Stay up to date with our other accounts!!!***My Personal Accounts:https://twitter. It looks like it’s in neutral but it won’t push over to 5th gear or reverse and won’t go into any other gears because it’s stuck in 5th for some reason. Now it is sticking in reverse and is hard to get in reverse also sticks in 5th once you get it. The guy told me that this happens alot to nv4500s. NV4500 STUCK IN 5th gear, PLEASE HELP!!!. Read all about how we rebuild an old NV4500 Manual Transmission and fix the Dodge fifth gear problem in Four Wheeler Magazine! News. 11 52-0228 GEAR-NV4500 5TH FOR DODGE HD 29 SPLINE $55. Transmission parts for 2WD Dodge trucks at public wholesale pricing. When the 5th gear nut comes loose you have a 4 speed that will shift just fine, everything else being equal. also check the two roll pins in shifting fork. Dodge NV 4500 Transmission Fifth Gear Removal. Its been popping out at times for a while now, so I knew it might happen. Posted by Lyndsey Cox on Aug 25, 2009. NV4500 Transmission Gears. how worried would you be?. Allstate Gear offers a full selection of NV4500 replacement gears for individuals searching for the highest-quality NV4500 gears for sale at the. Dodge NV4500 Master Rebuild Kit with 5th Gear 2WD, Inc. We also offer a number or upgrades for your NV4500 including: Cryogenic treated shafts and gears will add 30% more strength to those transmission parts. From the factory the dodge mainshafts are only splined for maybe 1/3 of the lenght of 5th gear. 94 5sp 4x4 4x13x155 2x4 to 4x4 converson. If the assembly wont move, the answer most likely lies in removal. According to the folks at Rockland Standard Gear, the Dodge NV4500 had a design defect in the splines on the. Pulled the shift tower off to take a look. DODGE CUMMINS NV4500 5th gear FIX !. doesnt really tear anything else up and you can fix the problem without pulling the tranny if the rest of it is still in good shape. Apparently the shift tower had worn to the point that the shifter somehow slipped between the gates. Dodge NV4500 4X4 5th Gear Fix - STEP BY STEP!! - YouTube 0:00 / 6:02 Dodge NV4500 4X4 5th Gear Fix - STEP BY STEP!! J-Bobs Garage 5. Dodge NV4500 4X4 5th Gear Fix - STEP BY STEP!! - YouTube 0:00 / 6:02 Dodge NV4500 4X4 5th Gear Fix - STEP BY STEP!! J-Bobs Garage 5. 3K views 3 years ago Let us see if we can free up this NV4500 5 speed transmission from being stuck in gear. The splines were not long enough and they were manufactured with an incorrect angle. 34 ratio and the other with a 5. 88s, or run stock or 31” tires. My 2wd Dually with the NV4500 does that as well. 9s torque pulses are stronger - 6 cyl making more torque w/ less cylinders, therefore each pulse a bit stronger. When the truck slows down, the main shaft drives the counterbalance shaft, reversing the thrust direction. Having problems with Fifth Gear in your Dodge NV4500? There is a fix. 1> remove the driveshaft, 2> unbolt the mount from the crossmember, 3> lift and support the transmission with a jack, 4> remove the mount/mount plate from between the tailhousing and the crossmember. This eventually lets 5th gear move. com%2fnv4500-5th-gear-failures-and-solutions%2f/RK=2/RS=TdG28hl. A unique feature of the NV4500 is its fly-weighted 1st-to-2nd gear synchro assembly, preventing a downshift at excessive revs. This is a sign of wear or fretting. 1 Answer Transfer case stuck between 2H and 4H Just put 5th gear back on my 98. SOLVED: Transfer case stuck between 2H and 4H. Reply Save Like country_hick · #6 · Dec 16, 2013 Probably when you pulled the shifter you accidentally moved a shift lever inside. com Forum>NV4500 3rd Gear Issues. 9K subscribers Subscribe Like 40K views 6 years ago 1999 2wd Dodge 2500 Ram pickup. >NV4500 Transmission Exploded View. An H55f would really be a lot better for you. NV4500 5th Gear Fix - YouTube 0:00 / 14:04 NV4500 5th Gear Fix yourbeekeeper 32. NV4500s have 5th gear issues. I had to fix the 5th gear in my truck to. lars Contributor Been here awhile Joined Jun 29, 2001 Messages 2,850 Loc. Happens mostly on trucks that do lots of towing. The theory on the NV4500 5th gear/nut issue is that the Dodges saw more failures because the 5. NV4500 5th gear is it an issue or not. Aimless and 2001 Dodge 3500 Stuck in gear. You already have the NV4500 adaptors. The 5th gear syncro/selector then slides towards the end of the shaft, taking up the clearance until it bottoms out on the snap ring. 00 Add to Cart Buy Now Ask Question Aftermarket Parts NV17018 x2 NV4500 Spring Steel Snap Ring Retainer for 5th gear on counter-shaft $12. also check the two roll pins in shifting fork. i put a small wire through them so they cant come out. Unfortunately, each forward gear has a 4 part assembly that makes for the connection to the tranny drive. From the factory the dodge mainshafts are only splined for maybe 1/3 of the lenght of 5th gear. I did not ask about them the repair method, as I was purchasing the truck regardless. This is a sign of wear or “fretting”. Discovered a vacuum problem and now it is fixed but I dont know how to get it to engage all the way in one gear. The best fifth gear fix for the NV4500 is to make SURE you have the FACTORY shaft, not the aftermarket updated shaft, and then use TWO nuts on the fifth gear, put purple threadlocker on the threads, and make sure the outside nut has a locking collar, i. Basically the nut that holds 5thgear backs off. Can be a big issue but you can fix it. 9 cummins motors with that bolt pattern, i do know the flywheels from a NV4500 are not the same diameter as a NV5600, alot of people have that impression, friend had it too and put one in his 6 speed 2003 CR pulling truck in 2004 when he cooked the clutch, starter wouldnt engage, and yes the 2003-2004. I started out with very little I still have most of it. NV4500s have 5th gear issues. The NV4500 transmission was the highlight of this new venture. Honestly, thats a tough question, mostly because you apparently already have one of the most desirable manual transmissions for any off-road vehicle. Since you have the dampener, if you plan to retain it in its entirety, you will need the socket for the 5th gear nut (more expensive than the wrench). All of the 5th gear related parts are new. Also, have someone check the pinion angle on the rear axle. The problem is the axial clearance in the 5th gear selector on the counter balance shaft. com/_ylt=Awriir6TRFVkiTETyclXNyoA;_ylu=Y29sbwNiZjEEcG9zAzUEdnRpZAMEc2VjA3Ny/RV=2/RE=1683338516/RO=10/RU=https%3a%2f%2ftorqueking. gear, collar the shop even went as far grinding the countershaft down to get the gear to sit farther on. rebuild guide to NV4500. Nv4500 Stuck In 5th Gear1999 2wd Dodge 2500 Ram pickup with a 5. Wlot8b9_jmkhDsjm7pU- referrerpolicy=origin target=_blank>See full list on torqueking. NorCal flatlands Jan 7, 2022 #8. Basically the nut that holds 5thgear backs off. All forward gears are fully synchronized. Share The same thing happened to me a while back but i was stuck in 5th gear. Buy here and get the best NV4500 gear set available. This NV4500 rebuild kit is for 1994 and later Diesel RAM 2500 and 3500 Series trucks, 3/4 ton, and one ton Dodge trucks. I just finished my NV4500 swap, and all seems well except that the trans doesnt want to come out of 5th gear after it has been highway cruising for a while. Reply Save Like Acsmilton Discussion Starter · #6 · Dec 26, 2011 Ive read smt bout a nut backing off. Its either some failed part in the clutch assy or the tranny itself. Buy here and get the best NV4500 gear set available. By adamey1000, August 5, 2013 in 2nd Generation Dodge 24 Valve Powertrain. is this the 5th gear nut issue? or a possible shift fork being broken? thanks in advance Answered in 6 hours by:. The easiest way to determine this is just to start the pickup. If there are weights missing a driveshaft shop is in order to have it balanced. com/nv4500repa **Stay up to date with our. Dodge NV4500 4X4 5th Gear Fix - STEP BY STEP!! - YouTube 0:00 / 6:02 Dodge NV4500 4X4 5th Gear Fix - STEP BY STEP!! J-Bobs Garage 5. my nv4500 is stuck in reverse, shifter will slide between where 1-2 and 3-4 are in the neutral positions but wont go to the 5-R position and i cant get in into any gear, every time i release clutch the truck goes in reverse. Used a screw driver to put the middle gate back in neutral, and reassembled. 5x12x155 16deg timming fass 95 nv4500 conv p pump conv. Nv4500 transmission stuck in 5th gear. 2K views 2 years ago Ever wonder how to keep that pesky 5th gear nut to stay on your NV4500? Here is how we do it! Retroformance walks you through our procedure that has been time tested to. Spicer 3053A Transmission. The NV4500 transmission, for example, featured two different NV4500 5th gears with different gear ratios; one with a 6. Nv4500 5th gear not engaging fix - YouTube 0:00 / 3:39 Nv4500 5th gear not engaging fix Jake J 23 subscribers Subscribe 15K views 6 years ago My nv4500 5spd Transmission in my 4bt. As for why 3rd is the only bad gear under load? Usually it is 5th gear that falls off in these transmissions. Dodge NV 4500 Transmission Fifth Gear Removal. Aftermarket suppliers have attempted to address this by splining the entire mainshaft where 5th gear engages but you have to be careful which shaft you install. I agree with tanman, to my knowledge, the GM transmissions had a different mainshaft and fifth gear than the NV4500HD (only found in v-10 and cummins applications) so afaik, they are immune to the problem. I just finished my NV4500 swap, and all seems well except that the trans doesnt want to come out of 5th gear after it has been highway cruising for a while. The best fifth gear fix for the NV4500 is to make SURE you have the FACTORY shaft, not the aftermarket updated shaft, and then use TWO nuts on the fifth gear, put purple threadlocker on the threads, and make sure the outside nut has a locking collar, i. com NV4500 Master Shim Kit NV4500-SMK - NV4500 5 Speed Dodge Repair Part. Pulled the shift tower off to take a look. The same thing happened to me a while back but i was stuck in 5th gear. It also does the same thing going IN to reverse sometimes. Dont the hd nv4500s have heavy springs that hold the shifter from vibrating and holds the shift rail detents in place? m37dsl Registered Joined May 16, 2009 375 Posts #6 · Nov 8, 2011. That is the early General Motors NV4500. much less common on the gm nv4500 but still possible What he said. The GMs were used behind V-8s which has a smoother power output and is less prone to vibrate and back teh 5th gear nut off whereas the CUMMINS has more power per engine combustion event and a more pulsier type power output that vibrates and work them loose. Featuring a granny low first gear coupled with a fifth gear overdrive, the stout NV4500 is truly the best of both worlds. Did you get a chance to check out the service manual for the Dodge NV4500 in that link? Most of the special tools they reference are not required, especially if you plan to use all new bearings. NV4500 5th gear fail (fix options experience). If I step on the clutch and wait about 2-3 seconds, it comes out normally. In January, while unloaded and driving on a 55mph state route I lost 5th gear. Need GM NV4500 assembly instructions. Happens mostly on trucks that do lots of towing. This is a sign of wear or fretting. Read all about how we rebuild an old NV4500 Manual Transmission and fix the Dodge fifth gear problem in Four Wheeler Magazine! News. Make sure when ordering your gears that youre selecting the correct one. While Im sitting here, I might be able to. Did you get a chance to check out the service manual for the Dodge NV4500 in that link? Most of the special tools they reference are not required, especially if you plan to use all new bearings. is this the 5th gear nut issue? or a possible shift fork being broken? thanks in advance Answered in 6 hours by:. 5 pitch threads GM NV4500 (All) Threaded stub, 12mm x 2. yes, they will bolt to all of the 5. 70s in your 1980), unless you re-gear to 4:56s or 4. NV4500s have 5th gear issues. See more Reply Save Like D Dual K20s · #3 · Feb 12, 2008. NV4500 5th Gear Fix - YouTube 0:00 / 14:04 NV4500 5th Gear Fix yourbeekeeper 32. If the gear does not fit tight on the shaft, it doesnt matter what contraption you put behind it, the mainshaft 5th gear will move around and eventually take out both countershaft and main shaft 5th gear teeth.