I'm looking to replace the front and rear differential fluid on my 2000 zR2 blazer. Can anyone tell me exactly what fluid and how much I'll need to do both the front and rear. Any help on the matter will be greatly appreciated.

 

If I remember correctly, the manufacturer recommends 85W-90. Personally, I use 75W-90 in the front diff and 85W-140 in the rear.
I'll have to look and see what the capacities are. I want to say the rear was 2 quarts and I cannot recall the front for the life of me right now, but I can't be 100% certain.

 

Just did the front on my 04 Blazer. Just over 1 1/2 qts.

 

Thank you very much for the help

 

What diff. oil is best to use. Synthetic or reg. petroleum? How much? What weight per factory spec's?