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Application
- For Dodge 1994 - 2005 Ram 2500 4WD with NV4500 transmissions(5.9L and 6.7L)
- For Dodge 1994 - 2005 Ram 3500 4WD with NV4500 transmissions(5.9L and 6.7L)
Why do you need this TOOL?
- You'll never experience the retaining nut backing off again
- You'll never experience a delay in responsiveness during shifting
- Install the lock nut retainer on the main output shaft of the transmission.
- You only need to drop the transfer case and can leave the transmission still assembled in the vehicle. The retainer simply slides into place in the shaft and is kept secure by the transfer case's input shaft.
5th Gear Lock Nut Retainer
- It is designed to be complete with reinforced, extended splines attached to thick, sturdy walls that will lock the nut to the splines on the main shaft for good.
- Prevents the common issue of the NV4500 5th gear nut backing off of the shaft, causing failure.
- Perfect fitment for solid and secure installation
High Quality
- Constructed with high standard steel,anti-corrosion, and never to brake
- CNC constructed with computer programmed pulse welds for perfect fitment.
- The lock nut will vibrate loose over time and allow the 5th-gear assembly to work its way off the splines of the shaft and no longer mesh with the companion gear.
- This updated lock nut kit retains factory main shaft lock nut fitment, prevents and repairs issues with 5th gear engagement. You never have to worry about the nut backing off again due to the splined lock.
5th Gear Lock Nut
- NV4500 Transmissions are famous for the 5th gear rocking off the main shaft causing you to lose 5th gear.
- This updated nut kit, along with the corresponding updated main shaft, stops that problem.
- The Nut has reinforced threads on a thick sturdy steel body and has a double locking screw set for maximum grip, just to reinforce 5th gear.
- Double Locking Set Screws complete with brass contact pads.Precision.
- Spring Washer helps provide controlled reaction under dynamic load
Easy to Install
- The lock-nut retainer installs on the main output shaft of the transmission. This means you only need to drop the transfer case and can leave the transmission still assembled in the vehicle. The retainer simply slides into place in the shaft, and is kept secure by the transfer case's input shaft.
- 1x 5th Gear Lock Nut Retainer
- 1x 5th Gear Nut1
- x Spring Washer
- 2x Set Screw
- 2x Brass Pucks
Stan
August 21, 2025
Excellent design, fixes manufacturers design problem, great price
Zane R.
August 11, 2025
Working good so far, pulled 12k in 5th for a while and haven’t lost it yet. Good fitment on install
Stephen R.
June 25, 2025
Does what it was made to do
Quintin Kratt
May 20, 2025
Fits perfectly, was packaged nice so it wouldn't get damaged
andy k.
May 8, 2025
I have a 99 Ram with the NV 4500 great repair for the 5th gear nut that has problem falling off collar tool keeps it from ever back off again works great also I have the 4 by 4 model
T.M.F.D.
April 15, 2025
Works like it should.
Mike
March 26, 2025
This locknut setup worked like it should. I used red loctite when I put it on and it hasn't backed off yet.
Bryce
January 12, 2025
Was the perfect fix for losing my 5th gear in my nv4500, it's been in for about 2 weeks and no problems this far.Update: The nut backed off and the Spacer broke. I am unable to find a way to contact them for replacement as it has not been 12 months.
K
January 10, 2025
Fantastic idea
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