what rear end oil do i need?
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Junior Member
Joined: Dec 2007
Posts: 39
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From: springfield. aka springtucky.aka.the dirtyfield ohio
Car: 85.iroc.z28
Engine: 385 tpi
Transmission: 700r4
Axle/Gears: 3.42
what rear end oil do i need?
hey all i just pulled the rear end out of my car to clean it up and replace the pinion seal. i poped off the rear cover and it looks as if the fluid had never been changed. i have never changed fluid in a posi before i have heard and read that a posi unit takes a specail tipe of oil or a addive-(man i cant spell). any ideas? i will take anybodys
thanks . 
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: what rear end oil do i need?
I use Mobil 1 (75-90, IIRC) with GM additive.
JamesC
JamesC
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