Range of cost for rear main seal job at a shop?

[89Suburban]

In my case, and many others I presume, it is not the actual RMS that leaks. It is the rear cover. It can be nearly impossible to see an actual leak from this rear cover.

Do the bolts come loose on those too like the VLOM or is it just the gasket breaking down?

 

[mountie]

In my case, and many others I presume, it is not the actual RMS that leaks. It is the rear cover. It can be nearly impossible to see an actual leak from this rear cover.

But.. Since you have to dig in there, ...might as well, to change both.....

 

[Larryjb]

Do the bolts come loose on those too like the VLOM or is it just the gasket breaking down?

Bolts seemed snug, definitely not loose. I think what happens is that the gasket gets compressed and shrinks. When I removed the old gasket, the gasket material was pretty much flush with the metal carrier. I wonder if RTV from the factory would have lasted better.

 

[Larryjb]

But.. Since you have to dig in there, ...might as well, to change both.....

It would almost be criminal to not replace the rear cover gasket at the same time. No mechanic with any conscience at all would omit changing the rear cover gasket, I'm sure.

 

[Just Fishing]

I'm guessing that most places will just buy the GM rear cover "kit"
comes with a new rear cover with rear main installed and a fresh set of bolts.

 

[donjetman]

11/23/18 - I installed rear main seal & cover – Dorman 635-518 - $43, 62k miles ago.
https://www.tahoeyukonforum.com/threads/rear-main-seal-job-pan-etc-07-yukon-denali-6-2.108334/