oil capacities question

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09-21-2007, 02:57 PM

droptop66

Thread Starter

Join Date: Aug 2007

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Posts: 46

oil capacities question

What weight gear oil do I use on a 1966 rear end??????

09-21-2007, 03:36 PM

LPlum

1st Gear Member

Join Date: Sep 2006

Posts: 61

RE: oil capacities question

I beleive you will use 80/90 weight gear oil. If you have a limited slip/posi rear end you may need an additional additive.
Lowell

09-21-2007, 04:17 PM

bluovalguy

4th Gear Member

Join Date: Mar 2007

Location: Portland, OR

Posts: 1,747

RE: oil capacities question

I just filled mine with 1 bottle Valvoline and 1 bottle Lucas, both 89/90.

09-21-2007, 04:26 PM

Starfury

6th Gear Member

Join Date: Aug 2007

Location: Elk Grove, CA

Posts: 5,896

RE: oil capacities question

75W90 or 80W90 will be fine, with a LS additive if you've got a Trac-Loc. Fill until the fluid starts dribbling out of the fill hole, I think it's just shy of 2qts.

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