Description
Performance Dodge NV4500 Transmission
The New Venture 4500 (NV4500) transmission has earned its reputation as an industry favorite thanks to its rugged design, high horsepower capacity, and impressive torque handling. Recognizing its popularity and potential, we set out years ago to engineer a remanufactured NV4500 that not only matched but exceeded the original in strength and reliability. Through extensive research and hands-on experience, we identified several factory design flaws and systematically eliminated them to deliver a truly performance-driven upgrade.
One of the first improvements we made was replacing the factory carbon fiber synchros with precision-machined brass synchros. Brass offers superior durability, smoother engagement, and allows the use of standard 75W-90 GL-4/GL-5 gear oil instead of costly synchro-mesh lubricants. We also resolved common NV4500 issues such as fifth gear failures and poor fluid retention by upgrading the main shaft with reinforced extended splines and implementing a robust double-locking collar system. Additionally, we strengthened the input shaft to support higher torque loads and ensure long-lasting performance. The result is a remanufactured NV4500 transmission built for heavy-duty use, enhanced reliability, and reduced maintenance costs.
NV5000 direct replacement for the Dodge NV4500
The NV5000 is a direct replacement for Dodge Ram 4X4 1994 to 2004 models with an NV4500 transmission.

