NV4500 Conversion Kit for 94 & up 5.9L Cummins replacing auto

Prices are Subject to Change Without Notice.

Installation notes below pricing Tables

For more detailed information on what is involved in a conversion click here

Note: When comparing our pricing with others, make sure you are including the same parts, and are comparing the bottom line. We do not think we will be beat often, both in service and price.

Customer Service: When you buy a package from High Impact, free tech support is available for any questions or issues you may have both during and after your install. An engineer will go over the details of your system with you at the time of purchase to go over options, and verify the exact engineering and parts included in your kit is correct for your application.

Package for 4WD: Installation Notes below.

Note: Parts can be purchased separately also.

Package Price	$5,734.17 - Free Shipping
Rebuilt NV4500	Included
Shift Tower	Included
OPTION: South Bend Billet Input Shaft - 1-3/8", 10 spline Recommended for high HP applications - $446.20
NV4500 shift handle	Included
Bellhousing kit - including bellhousing, clutch release arm, ball pivot, ball pivot washer, clutch return spring.	Included
South Bend 13" Upgrade clutch and FW system Con-O - smooth engagement - rated 400 HP, 800 ft lbs - includes new Flywheel, throwout bearing, alignment tool and hardware	Included
Option: South Bend 13" Street Dual Disc Clutch and Flywheel system (moderate pedal), smooth engagement. Rated 550 HP 1100 ft lbs adds $436.50 to package price
South Bend preassembled, precharged master, slave, Hydr line & Fluid reservoir assy	Included
29 spline input, bearing, seal and pocket bearing for transfer case.	Included
Clutch/brake pedal assembly - these needed items can be acquired from the dealer or junkyard

To purchase online click here

Package for 2WD: No longer available

Installation & Application Notes:

NV4500 Replacing an Automatic Transmission:

The package above forms a system is designed to replace an automatic transmission Behind a Cummins Diesel. All of the major components needed are supplied for this conversion, with the exception of the clutch pedal assembly.

Clutch Pedal assembly

These parts are available from the dealer, or if you prefer, a junkyard. You will want the stock bracket, pedals and linkage components from your same-year stick-equipped vehicle. The master cylinder we supply will fit this assembly. If desired for convenience, we can attempt to source these parts from a dealer, however most likely at a higher cost than you can buy them direct from the dealer.

4WD applications

Dodge Cummins Trucks with auto transmissions: were supplied with a 23 spline input on the transfer case. All of the Factory Dodge Cummins 5 speed applications were 29 spline into the transfer case. The 29 spline shaft is stronger than the 23 spl shaft, and the auto trans with the torque converter does tend to cushion the output of the trans from the heavy torque pulses generated by the Cummins diesel.

NP241 or 271: All we would need to change is the input gear and bearing. Also comes with seal and pocket bearing – $165.

Drive Shaft(s) You may need to have your driveshaft(s) modified for length. A local driveshaft shop is usually available to do this.

Stick Shift

It will be necessary to cut a hole in your floorboard to accommodate the stick shift. A simple boot can be mounted over the hole to dress this.

Cross Member

You will more than likely need to modify your current cross member.

Computer

You will need to have your computer reflashed or replaced to accept a 5 speed. Sometimes nothing needs to be done to computer it just automatically adjusts.

Drive Shaft(s)

You may need to have your driveshaft(s) modified for length. A local driveshaft shop is usually available to do this.

Stick Shift

It will be necessary to cut a hole in your floorboard to accommodate the stick shift. A simple boot can be mounted over the hole to dress this.

2WD

You will need to obtain a Dodge style slip yoke,