Iowa Convention + Final Drive Lube

brent covey

New member
Jul 2, 1999
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Hi Larry

>Secondly, I have found a mechanic to install my 3.42. Got all the stuff
from
>Cinnabar that goes with the installation. What do we use for lube.....(I am
>100% synthetic right now)? Larry in MO, 75 PB

I'd suggest using a name brand of 80-90 Differential oil of regular
(dinosaur) type for break in. You'll want to change the oil a bit early
anyhow (5,000 miles or so?) after break in, to get the little particles out.
Might be an idea to take pains to find a product that features a lot of
Molybdenum Disulphite, GM Parts Department brand is a good choice.

Hope this helps

Brent