5th Gear Lock Nut Retainer Kit for 1994-05 Ram 2500 3500 4WD NV4500 TransmissionA Must Have Kit Common symptoms for the early stages of 5th-hear lock-nut failure include but are not limited to:Excess transmission noiseJumpy/jerky 5th-gear drivingDifficulty with engaging 5th-gearGrinding when entering 5th-gear If your truck is suffering from any of these symptoms, 5th Gear Lock Nut Retainer Kit may be the fix you need!Fitment Custom-fitted, fit for Dodge 1994 – 2005 Ram 2500 and 3500 4WD with NV4500 transmissions (5.9L and 6.7L).Only fits 29-spline output shafts (Dodge 4wd models), does not work with GM/Cheverolet NV4500 transmissions. 100% Satisfaction Guarantee We aims to provide you the best products and services. We support 60 days returns and 12 months warranty. Please feel free to contact us if you have any question.5th Gear Lock Nut RetainerNice design 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. Bolt-on’ kit installs in approximately 2 hours.No special tools required.Function Prevents and repairs the common issue of the NV4500 5th gear nut backing off of the shaft, causing failure. Retain factory main shaft lock nut fitment.5th Gear Lock Nut KitFunction 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. 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. (Direct Replacement)Never have to worry about the nut backing off again.Nice design Has reinforced threads on a thick sturdy steel body and has a double locking screw set for maximum grip, just to reinforce 5th gear.Easy to Use No need to remove, or disassemble the transmission assembly. Only remove the transfer case and extension housing while still in the truck. The retainer simply slides into place in the shaft, and is kept secure by the transfer case’s input shaft.Features 4-Tab Design 4-Tab design completely engages the lock nut, while 29-Spline body meshes with the main shaft for solid, secure installation.High-grade Steel Made of high-strength steel and CNC constructed with computer programmed pulse welds, ensure a perfect fit with exact tolerances for problem-free performance and long term service.Double Locking Set Screws & Spring Washer Double Locking Set Screws complete with brass contact pads.Precision Spring Washer helps provide controlled reaction under dynamic load.