D 250 Pickup V8-5.9L VIN Z (1992)
Mainshaft: All Technical Service Bulletins
NV4500 M/T - 5th Gear Nut Servicing
NO: 21-09-95
GROUP: Transmission
DATE: Jun. 30, 1995
SUBJECT:
Servicing of 5th Gear Mainshaft Nut for NV4500 Manual Transmission
MODELS:
1992 - 1993
(AD) Ram Pickup Cab/Chassis
1994 - 1995
(BR) Ram Truck
NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A STANDARD DUTY OR HEAVY DUTY NV4500 MANUAL
TRANSMISSION.
DISCUSSION:
When disassembling the NV4500 manual transmission, it is necessary to replace the 5th gear mainshaft nut (shown in illustration). Before installing the
nut, Mopar Lock & Seal, P/N 4318032, should be applied to the threads to ensure the security of the nut. Under no circumstances should the original nut
be reused. The 5th gear mainshaft nut has a special adhesive patch that is effective for original installation only. If a new nut is not used, loosening of the
nut will occur resulting in transmission damage.
NV4500 Manual Transmission Fifth Gear
The mainshaft nut for the standard duty manual transmission used with 5.2L and 5.9L engine is P/N 4637802. The mainshaft nut for the heavy duty
manual transmission used in the 8.0L and Cummins Diesel engine is P/N 4741553.
POLICY: Information Only