ok guys have a 1990 (2 door) s10 blazer sport 4x4 4.3 changed out the diff oil seal it up with a new gasket but the guy who own the truck before me must have rounded off the drain plug so its not going to come out

I need some one who has done a gear oil change to tell me how much gear oil they used to fill the rear diff cause i may have to pour it down the vent hoes have 2 liters on hand but i know its dont take all that

 

read here
https://blazerforum.com/forum/2nd-ge...er-plug-85254/

 

I had a 3/8 extension welded on mine, works fine.

 

I got a new cover with the fill hole.