80 or 85W 90 gear oil.
10w30 synthetic
A/C DELCO is the best oil filter, That is what the factory uses.
The Oil Sending Unit on a 1988, 89, and 90 model Silverado is behind the driver side manifold. It is right above the oil filter. It is a canister that is bolted to a piece of tubing that leads to the motor.
for my 02 1500 2wd its 75/90 gear oil
a/c delco filter is the best.
replacing oil pump 4x4 silverado 2500
You change the 2008 silverado oil transmission whenever you take it for service.
In the oil pan
5W30 oil.
GMC Sierra, Silverado, Silverado 2500HD, Silverado 3500
Nope.