K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Fluid - A/T: Fluid Type Specifications
TH 400 (3L80) & 475 (3L80HD)
Lubricant Type ....................................................................................................................................................................................................... Dexron II
4L60 - 700R4 Transmission
Lubricant Type .............................................................................................................................................................................................. Dextron II ATF