What happens when an Eaton posi goes out?
#1
What happens when an Eaton posi goes out?
Does it just spin one tire, or does it make grinding sounds when turning? Mine has been grinding lately. I think it's almost time to retire the damn truck.
Could it be the full-synthetic oil the guy who put my new gear in used? Yes we did use the friction additive.
I bought some regular oil and more additive for it, but haven't had time to change it yet.
Could it be the full-synthetic oil the guy who put my new gear in used? Yes we did use the friction additive.
I bought some regular oil and more additive for it, but haven't had time to change it yet.
#3
It's an aftermarket Eaton 8.5" with the clutch packs. The sound only happens when turning and is coming from the back, so I assume it is the differential.
What do you think? Do the aftermarket clutch pack differentials wear out differently than the G80?
BTW I still have your ASM headers on my truck from WAY back in the Whipple days
What do you think? Do the aftermarket clutch pack differentials wear out differently than the G80?
BTW I still have your ASM headers on my truck from WAY back in the Whipple days
#4
TECH Veteran
If you're referring to the aftermarket (not a gov-lock) version of the differential unit you can't run synthetic in there. You have to run non synthetic with the additive or you can get groaning with possibly clutch slippage.
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#8
It was the oil. I changed it today to regular oil and it instantly stopped. I told the guy when he fixed it that I didn't think synthetic was a good idea, but he said it would be ok. Guess I proved him wrong lol.
The synthetic is just too slippery for the clutches.
The synthetic is just too slippery for the clutches.