NV-4500 Transmission Upgrades

In addition to completely rebuilding each NV-4500 with lots of new parts, High Gear Transmission also has several options to increase the strength and life of the unit.



Option #1) High Gear NV-4500 Input Shaft Upgrade:

High Gear Transmission uses an input shaft upgrade for the NV-4500. The HD Input will also be a great addition to your unit! This 1-3/8 inch input is much more beefy in comparison to the OE 1-1/4 inch input. This kit will include an input, bearing retainer, pocket bearing, and seal. 

An input shaft upgrade for the NV-4500 manual transmission. Installed by High Gear Transmissions.



Option #2) High Gear NV-4500 Main Shaft Upgrade:

High Gear Transmission installs an entirely new main shaft which has splines that go all the way through 5th gear. The Original Main Shaft splines only go 1/3 of the way through 5th gear. This Was A Design Flaw In The Original Unit. If You Buy A Unit Without This Upgrade, You Are Wasting Your Money. 


Option #3) High Gear NV-4500 5th Gear Upgrade:

High Gear Transmission also upgrades the fifth gear in the New Venture 4500 (NV4500) to ensure the best performance of the unit. We use an upgraded lock nut to keep the fifth gear from backing off. There are a couple of other upgrades and this makes fifth gear as good as it gets. This Upgrade Is A Must.

An example of a damaged gear in an NV-4500 manual transmission. Damaged gears like this are common issues in this transmission model.

Comparison between the factory main shaft in an NV-4500 manual transmission, and the upgraded main shaft.

An example of a damaged main shaft and 5th gear in an NV-4500 manual transmission.

A technician at High Gear transmissions installing the input shaft upgrade for the remanufactured NV-4500 manual transmission.

Close-up view of the upgraded main shaft for an NV-4500 manual transmission.

 

Option #4) The cast iron tail for the Dodge NV4500 is a great addition to your purchase.

The cast iron tail is much stronger than the OE Aluminium tail that came with the unit.

A brown coated cast iron tail for the Dodge NV4500 manual transmission is stronger than the stock aluminum option.

 

Option #5) Cryo Treatment Of All Gears Is Now Available For All NV4500 Units.

Our experts say The Cryo process will increase the strength of the steel by 30% inside your unit! The greatest benefit of the cryogenic treatment is torque capacity. It can raise torque capacity anywhere from 350 lbs to 500 lbs! Cryo-treating will increase the durability and longevity of your unit's lifespan significantly.

A bulk bin of NV4500 manual transmission gearing after receiving a cryo treatment.

 

Option #6) Powder Coating.

Powder coating is available for your unit. It will make your transmission look like a piece of candy. Call 901-278-0090 for pricing info.

Bright pink powder-coated Dodge NV4500 manual transmission casing.