Posi Chatter
08-14-2007, 03:54 AM
#1
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Car: 1986 Firebird
Engine: V8
Transmission: T5
Posi Chatter
I recently had my rear diff oil changed, and had an Amsoil posi-additive added because I was hearing my posi- rear end chatter when going slow, slightly off from straight. That did the trick, until I needed to move only a few hundred miles later. The move was 1600 miles so the rear-end no doubt got hot- could the additive have broken down? Any idea of whether I should just add more? Is the GM additive any better?
Thanks,
-Mike
Thanks,
-Mike
08-14-2007, 08:57 AM
#2
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Car: 1991 Pontiac ta 5.0l 2005 pontiac gxp 5.3l ls4 dod 2003 GMC Envoy 4.2l
Re: Posi Chatter
I have never found an additive that worked like the gm one. I would stick with what is designed for your rear. That stuff quiets down rears that I thought where just trashed.
08-14-2007, 09:16 AM
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Car: 1989 GTA
Engine: 355 with Super Ram
Transmission: 700R4
Axle/Gears: 3.73 10 bolt with a True-trac
Re: Posi Chatter
change the fluid out again and use the gm additive. 
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