51 3100 4spd trans oil recommendation

What would everyone recommend for trans oil weight and brand?

Haasman

 

Hassman,

The Chevy Dealer here gave me SAE 80W-90 API GL-5 to put in the transmission. That also is what Nate told me to get. I took the #'s right off the Quart bottle from the GM Dealer. Hope this helps.

Charles

 

Wonderful! Thank you Charles

Haasman

 

Your Welcome, glad i had the bottle handy.

 

Isn't that the same as the stuff used in the steering box?

 

Yes, that is what I did, I hope that was right that and the rear end

Nate where are ya

 

Gear Oil

I've been writhing in pain since Friday's midnight repair marathon .

Anways , yes , 85W - 90 Gear oil (or 90W if you can still find it anywhere) gets the nod for both mnual gearbox and steering gear .

Be aware the steering gear tends to drip so it'll need more every couple months .