rear end oil capacity
Thread Starter
Racer
Joined: May 2003
Posts: 273
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From: Sacramento California
rear end oil capacity
i am about to change the oil in my 91 rear end (using mobil 1 75 90w ),question: what is the oil capacity for the rear end 2 QTS? also i would appericate any tips or pointers on how to complete this change of my rear end fluids.
thanks boonie
thanks boonie
Large Impressive Member
Joined: Jul 2003
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Buying two qts. will do it. If I remember right, it's 1.8 qts. and this applies to the D36 as well as the D44. Don't forget the GM limited slip additive. 
Drifting
Joined: Nov 1999
Posts: 1,324
Likes: 18
From: St. Peters MO
rear diff. gear oil change
Changing the rear end gear lube is a pain, best bet is to get a "suction gun", looks like a grease gun, has a plastic hose about 3/8" dia. on one end, and a pull handle on the other (avail. at normal auto parts stotes),
Remove fill plug, it's a 3/8" allen wrench. Suck out as much of the old fluid as possible by inserting the plastic tube down deep and pulling on the handle of the suction gun. try to get plastic tube to the bottom of the differential housing. Do this unttil you can't get any more old fluid out.
Refill: full capacity is 1.42 liters (1.5 quarts) plus 4 ounces of GM anti-slip additive that you must purchase at a GM dealer for about $8 a bottle (4 oz. bottles)
It's hard to get all the old fluid out, so re-fill amount may be less than the 1.5 quarts, put in the "anti-slip additive" first.
Access to the fill plug is difficult, spillage will occur during filling, fill until it comes out the plug hole. Do not "overtighten" the fill plug when re-installing.
Remove fill plug, it's a 3/8" allen wrench. Suck out as much of the old fluid as possible by inserting the plastic tube down deep and pulling on the handle of the suction gun. try to get plastic tube to the bottom of the differential housing. Do this unttil you can't get any more old fluid out.
Refill: full capacity is 1.42 liters (1.5 quarts) plus 4 ounces of GM anti-slip additive that you must purchase at a GM dealer for about $8 a bottle (4 oz. bottles)
It's hard to get all the old fluid out, so re-fill amount may be less than the 1.5 quarts, put in the "anti-slip additive" first.
Access to the fill plug is difficult, spillage will occur during filling, fill until it comes out the plug hole. Do not "overtighten" the fill plug when re-installing.
