Advance Adapters AX15 - Manual (Page 13)

NV4500 INPUT & OUTPUT
SHAFTS
GM 32 TOOTH 4WD OUTPUT SHAFT
On all NV4500s that were equipped to a GM 4WD
transfer case, you will find that the output shaft has 32
teeth. The adapter housing that is mounted to the back of the
transmission case is 8-1/8" long. On the inside of this tailhousing,
you’ll either find a vibration damper on the output shaft or a steel sleeve.
Most of our transfer case adapters will require the damper or sleeve to be removed.
We couple to the 31 tooth spline located under the damper or sleeve. In order to remove the vibration damper or sleeve, you must
use a special socket. This socket will be required in order to remove the nut because this nut is put on with 275 ft./lbs. of torque.
On transmissions with the damper, a gear puller will be required since the damper is a press fit to the output shaft. On all
applications that require the removal of the damper or sleeve, we will provide a custom set collar that must be installed on the
output shaft to retain the 5th gear into position.
GM 35 TOOTH 2WD OUTPUT SHAFT
All GM NV4500s that were used in 2WD vehicles will be equipped with a 35 tooth output shaft. Located on the end of the shaft will
be a large balancer type yoke. We do not make any transfer case adapters to couple to this output shaft.
DODGE 23 TOOTH 4WD OUTPUT SHAFT
On all 1993-2000 NV4500s that were equipped with Dodge 4WD transfer cases, you will find that the output shaft has 23 teeth.
The adapter housing that is mounted to the back of the transmission case is 6-1/4" long. On the inside of this tailhousing, you’ll
find a locking nut that secures the 5th gear to the main shaft. This stock nut has undergone some design changes from the
manufacturer because they have been known to loosen after time. Our adapters do not require the removal of this nut; however,
you might want to make sure the nut is still properly secured. Most of our transfer case adapters do not require any modifications
to the shaft or stock tailhousing.
DODGE 29 TOOTH 4WD OUTPUT SHAFT (for Heavy-Duty & 2001 Standard Duty transmissions)
On all Cummins diesel Dodge Heavy-Duty 4WD NV4500s and 2001 & up Dodge Standard Duty 4WD NV4500s, you will find that
the output shaft has 29 teeth. The adapter housing that is mounted to the back of the transmission case is 6-1/4" long. On the
inside of this tailhousing, you’ll find a locking nut that secures the 5th gear to the main shaft. This stock nut has undergone some
design changes by the manufacturer because they have been known to loosen after time. Our adapters do not require the
removal of this nut; however, you might want to make sure the nut is still properly secured. If you have one of these transmissions
and plan on changing the output shaft to one out of the other model NV4500s (i.e. a GM NV4500), you will also be required to
change the 5th gear assembly since it will not fit on the new main shaft. A new nut to secure this 5th gear will also be required.
DODGE 30 TOOTH 2WD OUTPUT SHAFT
On all NV4500s that were used in a Dodge 2WD vehicle, you will find that the output shaft has 30 teeth. The tailhousing that is
mounted to the back of the transmission case is 13” long. This tailhousing uses a slip yoke assembly. The slip yoke can be
purchased from your local dealer.
DODGE 31 TOOTH Heavy Duty 2WD OUTPUT SHAFT
On all Cummins diesel Dodge 2WD NV4500s, you will find that the output shaft has 31 teeth. The tailhousing that is mounted
to the back of the transmission case is 13" long. This tailhousing uses a slip yoke assembly. The slip yoke for this transmission
is a 1410 series. We stock this yoke as
P/N 716087 , or it can be purchased from your local dealer.
MAIN SHAFT INSTALLATION:
Depending on your application and transmission model, you may require the instal-
lation of a new transmission main shaft. The installation will require the use of a
bearing puller in order to remove the rear tapered roller bearing on the main shaft. It
will also require a special tool to remove the nut holding either the 5th gear or the
harmonic balancer. These tools are available from your local GM or Dodge dealer
depending on the make of your transmission. Although it is fairly simple and easy to
exchange the main shaft on these transmissions, we recommend that you have the
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