NV4500 Conversion Package
Dodge Cummins: NV4500 replacing a Getrag 5 speed
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NV4500 Applications
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NV4500 Diesel Applications
Dual Mass vs Solid FW
Phone Toll Free
888-316-2940
Customer Service: When you buy a package from High Impact, free tech support is available from a QUALIFIED engineer 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 applications
| Dodge Getrag Replacement (88-93 Cummins Diesel) | Purchased Separately | Package Total |
| Conversion Package | $2446.00 | |
| New Dodge HD NV4500 4WD Trans | $2175 | incl |
| Installation Kit (Including:) | ||
| Dodge Getrag to NV4500 conversion Bellhousing Kit (Fits stock clutch components: slave cylinder, release arm and throwout bearing) Kit Includes: | $356.53 | incl |
| Tcase shifter bracket to fit NV4500 | incl | incl |
| Pilot Bearing | incl | incl |
| Trans/Crossmember mount | incl | incl |
| NV4500 shift handle | $47.81 | incl |
Clutch: Your stock clutch as used with the Getrag will fit in this application. It is however recommended to replace your clutch components unless they are known to be fresh. Clutch options listed below.
Replacement length of this package: In 4WD applications, this package will pretty much bolt in as a replacement for a Getrag, without driveline mods. Measured from the rear of the stock Getrag Engine adapter to the rear of the transmission tailhousing:
| Bellhousing | 7.625 |
| Trans Main Case | 12.375 |
| Dodge NV4500 HD Tailhousing | 5.25 |
| Overall Length | 25.247 |
Package for 2WD applications:
| Dodge Getrag Replacement (88-92 Cummins Diesel) | Purchased Separately | Package Total |
| Conversion Package | $2547.84 | |
| New Dodge HD NV4500 4WD Trans | $2175 | incl |
| Installation Kit (Including:) | ||
| Dodge Getrag to NV4500 conversion Bellhousing Kit (Fits stock clutch components: slave cylinder, release arm and throwout bearing) Kit Includes: | $325.79 | incl |
| Pilot Bearing | incl | incl |
| Trans/Crossmember mount | incl | incl |
| Output Yoke kit | 160.41 | incl |
| NV4500 shift handle | $47.81 | incl |
Clutch: Your stock clutch as used with the Getrag will fit in this application. It is however recommended to replace your clutch components unless they are known to be fresh. Clutch options listed below.
Replacement length of this package: 2WD applications will need to modify the driveshaft: It will need to be shortened approximately 6"
. Measured from the rear of the stock Getrag Engine adapter to the rear of the transmission tailhousing (NOT including the slip Yoke):
| Bellhousing | 7.625 |
| Trans Main Case | 12.375 |
| Dodge NV4500 HD Slip Yoke Tailhousing | 13.00 |
| Overall Length | 33.0 |
Optional items available:
| Optional items | |||
| 4 | Qt "SynTorque" Lubricant (req for NV4500) | NA | $13.65 |
Clutch Options: Your stock Getrag Clutch will work in this system. It is recommended to replace it if it is not known to be fresh
It s important to size your clutch appropriately to engine power and load. Too light a clutch will fail. Too heavy will be unpleasant to drive. We can assist in selecting a clutch if desired.
| South Bend 12-1/4" Clutch - Smooth Engagement - Rated 350hp/700Ftlbs. Definite upgrade from stock clutch. Not recommended for heavy towing | $375.00 | |
| South Bend 13" Upgrade clutch and FW system Con-O - smooth engagement - rated 400hp 800 ft lbs - includes new Flywheel | $698.00 | |
| (Option) South Bend 13" Upgrade clutch and FW system Con-OFE - Medium Bite - Rated 450hp 1000 ft lbs - includes new Flywheel | $898.00 | |
| (Option) South Bend 13" Upgrade clutch and FW system Con-FE - Rough Bite - Rated 550hp 1100 ft lbs - includes new Flywheel | $998.00 | |
| South Bend 13" Dual Disc Clutch and Flywheel system, Ductile steel FW and plates, diaphragm style 3250lb plate load (moderate pedal), smooth engagement. Rated 550 HP 1100 ft lbs | $1,300.00 | |
| South Bend 13" Dual Disc Clutch and Flywheel system, Ductile steel FW and plates, lever style 3600lb plate load (heavy pedal), med engagement. Rated 550 HP 1100 ft lbs | $1,300.00 | |
| South Bend 13" Dual Disc Clutch and Flywheel system, Billet steel FW and plates, diaphragm style 3250lb plate load (moderate pedal), rough bite. Rated 650 HP 1200 ft lbs | $1,795.00 | |
| South Bend 13" Dual Disc Clutch and Flywheel system, Billet steel FW and plates, lever style 3600lb plate load (heavy pedal), rough bite. Rated 650 HP 1100 ft lbs | $1,795.00 |
Installation & Application Notes:
NV4500 Replacing a Getrag speed Transmission:
The package above forms a system is designed to replace a Getrag 5 speed transmission with an NV4500 5 speed. All of the major components needed are supplied for this conversion.
This system uses the factory engine/bellhousing plate. We supply a custom bellhousing that accepts the NV4500 trans and bolts up to your stock engine adapter (The factory bellhousing from the later engine with the NV4500 will not fit without replacement of the adapter housing as well).
This system also retains your factory clutch. The factory slave cylinder is used as well, simplifying and reducing the cost of this conversion
4WD applications
Transmissions are supplied with either the Dodge 23 spline or 29 spline 4WD configuration, as required by your factory transfer case
Custom non-stock transfer case applications: Contact High Impact.
2WD
The NV4500 is supplied with a factory Dodge style slip yoke, and provisions for a choice of mechanical or electrical speedo, as needed for your application.
Driveshaft(s)
You will need to have your driveshaft(s) modified for length. A local driveshaft shop is usually available to do this. If necessary, we can do it, however it is better to install the unit FIRST, then measure and build/modify driveshafts
Crossmember
You may need to relocate your crossmember, this can usually be done by re-drilling the frame and bolting into the desired location. You will need to drill the crossmember for the bolts to the larger NV4500 transmission mount