Shop Now for Dodge New Venture NV4500HD standard transmission 5th Gear Replacement Kits from our comprehensive, in-stock inventory of quality replacement parts for your 4x4 or 4x2 NV4500 5 speed. Applications include:
2003-2004 Ram 2500, Ram 3500 with Diesel or V10 engine & NV4500HD
If you had the the mainshaft nut back off your NV4500 and the mainshaft are still in good condition, you can replace the mainshaft 5th gear without removing the transmission with one of our mainshaft nut and fifth gear kits. 5th Gear Kits are really just a stop-gap repair to buy you time. Why? Because the actual cause of your nut backing off is radial movement from inadequately supported fifth gears on factory and full spline Mainshafts working against the nut set until it loosens. If used with a mainshaft that has just had it's first failure, you may get months or years of use from one of these Kits before the nut backs off again. However, the more worn the shaft, the quicker the failure. So if you install a new gear on a used shaft that has had several previous failures, don't expect much life out of the fix! For more information, read Tech Article about 5th Gear Failures and Solutions!
