99 G80 A4 Z28 Chatter from rear end
08-31-2013, 04:52 PM
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99 G80 A4 Z28 Chatter from rear end So I recently replaced my pinion seal on my differential. Car is a 99 z28 with the G80 code in the door. I'm now getting some chatter from the rear end at low speeds on turns with moderate to hard accel.
I've been reading one contradicting thread after the next about whether I should have added Limited Slip additive.
What i decided on when I filled the fluid after the seal change was 2 bottles of 75w90 mobil one synthetic (marked LS... does this mean they already had the additive?), and about 3/4 a bottle of the gm's acdelco branded additive. I say 3/4 cause i mixed the additive into the mobil 1 before adding, and i was only able to get about 1 and a half bottles of the lube in diff....
What did I do wrong and why is my diff chattering? Do i need more additive? Should I go with less additive?
I've been reading one contradicting thread after the next about whether I should have added Limited Slip additive.
What i decided on when I filled the fluid after the seal change was 2 bottles of 75w90 mobil one synthetic (marked LS... does this mean they already had the additive?), and about 3/4 a bottle of the gm's acdelco branded additive. I say 3/4 cause i mixed the additive into the mobil 1 before adding, and i was only able to get about 1 and a half bottles of the lube in diff....
What did I do wrong and why is my diff chattering? Do i need more additive? Should I go with less additive?
09-01-2013, 11:05 AM
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I also remember reading in other threads that adding "too much" additive would affect the viscosity of the lubricant. Makes sense... but I just don't know how much is "too much"?
