Advance Adapters AX15 User Manual

Page 41

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ADAPTER PACKAGES & INDIVIDUAL COMPONENTS

FOR CUMMINS DIESEL

DODGE TRUCKS

(REPLACING THE GETRAG 5 SPEED)

Between the years of 1989 to 1992, Dodge used a German
made Getrag 5 speed transmission coupled to the
Cummins diesel engine. These transmissions were
used in both 2WD and 4WD vehicles. The availability of
re-manufactured transmissions and replacement parts

have been extremely difficult to locate. We have developed a
bellhousing that will permit the use of the newer Heavy-Duty NV4500 transmission.

Many customers are aware that the NV4500 is currently coupled to the Cummins diesel. The logical reasoning might be to simply
use a stock NV bellhousing from Chrysler. Although this may be true, as was our initial thought, these original Chrysler components
for the NV4500 transmission proved to be extremely expensive. Not only would you need a new bellhousing, but you will also require
new clutch components, a slave cylinder, and considerable labor.

The bellhousing we manufacture bolts to the Cummins 5.9 diesel and utilizes the stock slave cylinder, clutch arm, and release
bearing. This bellhousing comes with a new pilot bushing for both the 2WD and 4WD applications. The 4WD kits also include
a crossmember mount and transfer case shifter bracket.

TRANSMISSION MODIFICATIONS for 2WD and 4WD VEHICLES:
Prior to assembly, modification will be required to the front portion of the NV4500 transmission. The bearing retainer must be
removed from the front of the 5 speed and shortened to a length that is 4.297" long. This can be done by using a cut off wheel or
engine lathe. By shortening the bearing retainer, this will prevent any interference with the hub on the clutch disc. The bellhousing
should be test fitted up to the back of the Cummins block to check flywheel and clutch assembly clearance on the inside of the
our bellhousing.

Floorboard modifications for the shifter lever will be required. Since there is a 4-1/2” difference in length between the Getrag and
the NV4500, the hole in your floorboard will need to be located back roughly 4-1/2" for the handle location.

2WD DODGE APPLICATIONS:

We offer a complete adapter package for this transmission swap.

The components in the packages that we do offer

can also be purchased separately. This package is only compatible with the

Dodge Heavy-Duty 2WD NV4500

transmission. This transmission can be special ordered from us.

NOTE: The 1998 & newer transmissions do not offer any type

of speedometer provisions. When obtaining your transmission, we recommend that a 1997 & earlier transmission be obtained.
The handle assembly in this kit fits the 1998 & earlier transmission handle configuration. If you have decided to use a later model
transmission without a speedometer drive, then you will need to substitute

P/N 716050D

with

P/N 716050D1

The speedometer components of the Getrag transmission will directly interchange into the new
Dodge Heavy Duty 2WD transmission. On most speedometer housings, you’ll find an “L” fitting
which reversed the speedometer cable coming out of the Getrag transmission. When installing
the speedometer housing onto the NV4500 transmission, you will need to remove this fitting to
obtain the proper speedometer rotation.

The output shaft on this transmission has 31 splines. We have

included a new output shaft yoke in this kit,

P/N 716087

(Spicer # 3-28-4391X). Driveline modifications

will be required (shorten approximately 6 inches). Floorboard modifications are required,
since the NV4500 shift handle location sets further back than the Getrag.

Since the crossmember mounting location on the Getrag is different then on the NV4500, your

stock crossmember will need to be modified. The front side of the stock Getrag crossmember

will need to be modified to clear the NV4500 tailhousing (photo above). By modifying the stock

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This manual is related to the following products:

NV3550, NV4500

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