[DonM]

The diff on my 2017 2LT (V6/manual - LSD) is shredding itself due to abuse from the former owner. My shop said there are absolutely NO AFTERMARKET OPTIONS, and all they could find as a stock GM LSD unit.

The total bill will be $3,000 + change (out the door price). Is this reasonable, or does ANYONE have an idea for another option??

TIA

[dmcmahan60]

To be honest, I would just buy a new from GM and have it installed at the dealership. My rear diff destroyed itself and there is an aftermarket option but it is over 6k. I was going to do the used rear diff route by my luck would be 1k for a used one and it would go bad shortly after. I paid $2900 for a new rear diff, and drivers side axel but I also had a friend that worked at the dealership and I got a discount on the price of the differential. And I had a 1 year GM warranty on the rear diff and axel. These have a welded carrier unit that can not be serviced, is why there are no aftermarket options. Good luck.

[DonM]

Originally Posted by dmcmahan60

To be honest, I would just buy a new from GM and have it installed at the dealership. My rear diff destroyed itself and there is an aftermarket option but it is over 6k. I was going to do the used rear diff route by my luck would be 1k for a used one and it would go bad shortly after. I paid $2900 for a new rear diff, and drivers side axel but I also had a friend that worked at the dealership and I got a discount on the price of the differential. And I had a 1 year GM warranty on the rear diff and axel. These have a welded carrier unit that can not be serviced, is why there are no aftermarket options. Good luck.

Thanks for the quick reply. I try not to do dealerships, unless I absolutely have to. The shop says it takes about 8 days to get the diff in, but I also want to make sure I'm able to get my sons new computers this Christmas (they are both Autistic and heavy gamers), plus their computers are about 5 years old and no longer upgradeable. I wanted to do it for them last year, but being newly retired and on an unfamiliar fixed income, I wasn't able to make it happen - still feel like shit about that. So I'm gping to try and wait as long as possible before committing to the new diff.

[dmcmahan60]

It will only get worse over time until it leaves you stranded. I understand about your financial situation and hope you get it resolved soon plus get the things you need for your kids Mine was my daily driver and i do 80 miles a day 5 days a week Good luck young man

[ZL14ever]

Is the diff the same as the ones in RWD Cadillac ATS & CTS? If so, there are Chinese diffs available in Ebay for less than $1k. There are few people in cadillacforums who used those with great success