Im pretty sure it 4.10:1
A 4L60E would not fit on a 91 Silverado because of the different dimensions.
They are all different. try looking in the glove box it might say in there.
conventional 80w/90.
yes. The only difference may be the gear ratio which could affect your speedometer accuracy
91:100
91:9 (or 9:91)
It should be a TH700-R4
The oil pressure on 91 Silverado 350 is at the rear of the engine on the driver's side, This unit is usually found above the oil filter.Ê
91-93 have the same wiring harness. There is a 2.73 gear ratio (FP3) & 2.97 gear ratio (F79) in that year, so be careful. 94-95 are interchangeable.
remove the diff cover and let the fluid drain out into a pan. clean the mating surfaces on the both the diff and the cover. use gasket sealer (or proper gasket) on the cover and replace the cover, torque to spec. unbolt the filler cover located on the either the diff or the cover itself. stick the gear oil nozzle in the hole and fill until fluid starts to overflow from the filler hole. replace the filler bolt. you need to know if the rear end has a posi in it. GM posi units require a special additive.
There is no adjustment. It has a tensoner that keeps the belt tight.
yes