C 1500 Truck 2WD V6-262 4.3L VIN Z (1992)
Fluid - M/T: Technical Service Bulletins
M/T - Correct Transmission Fluid Usage
GMC NUMBER:
92-7B-43
GROUP:
7B Manual Transmission
DATE:
January 1992
CORPORATE
NUMBER:
167203
SUBJECT:
CORRECT TRANSMISSION FLUID USAGE (INFORMATIONAL)
MODELS:
1991-1992 C/K AND P3 WITH A FIVE-SPEED MANUAL TRANSMISSION (RPO MT8)
The NV4500, five-speed manual transmission (RPO MT8) requires the use of a special synthetic lubricant (P/N 12345871). This special lubricant is
required to reduce transmission internal operating temperatures and is installed in all NV4500 transmissions in production. The synthetic lubricant does
not require periodic changing. If it is necessary to drain and refill or add fluid to the transmission, do NOT substitute any other lubricant. Installation of
other lubricants may result in internal transmission damage.
SERVICE PARTS INFORMATION:
P/N
Description
12345871
Fluid, Manual Transmission
(CASTROL SYNTROQ GL4) (1 gallon)
Parts are currently available from GMSPO.
