K 3500 1 Ton Pickup 4WD V8-454 7.4L VIN W 4-bbl (1982)
Fluid Pump: All Technical Service Bulletins
A/T - THM 400 Front Pump Interchangeability
SIL 85-6
SUBJECT: 400
Use the illustrated guidelines in helping to determine the interchangeability of THM 400 pump halves.
