Cat Studs
Burning Brakes
Joined: Sep 2019
Posts: 1,089
Likes: 668
From: Orange County, CA
I cant find the old stud i pulled out but its this part number: 11547306
The first line on this page says its M8 x 1.25
Genuine Exhaust System/Front for 2018 Chevrolet Malibu (gmpartsprime.com)
Remember these are "locking thread" studs so it may come out looking like what typically stripped looks like but they may not be. I think the stud thread is not cut as deep as it should be and its a interference fit (not smooth thread in as usual)
I doubt you need to run a tap through the flange unless it was cross threaded and that is easy to see. Run a M8x1.25 bolt through the hole and Im betting it goes in with little effort.
The first line on this page says its M8 x 1.25
Genuine Exhaust System/Front for 2018 Chevrolet Malibu (gmpartsprime.com)
Remember these are "locking thread" studs so it may come out looking like what typically stripped looks like but they may not be. I think the stud thread is not cut as deep as it should be and its a interference fit (not smooth thread in as usual)
I doubt you need to run a tap through the flange unless it was cross threaded and that is easy to see. Run a M8x1.25 bolt through the hole and Im betting it goes in with little effort.
Last edited by GTUnit; Jul 31, 2021 at 04:36 PM.
