2nd thrust bearing failure with powerglide
Thread Starter
Joined: Apr 2003
Posts: 871
Likes: 1
From: Whiteville, NC
2nd thrust bearing failure with powerglide I'm currently running a powerglide with an 8" ATI converter behind my LS7427. The motor ran great for 2 years with an 4L65E. When I converted to the powerglide I lost the engine thrust bearing in less than 20 passes. Figured it was just a simple failure. The crank was replaced with a new one and the motor was freshened up. Crank end play was .0025".. Now it looks like it has eaten another thrust bearing in less than 20 passes again. Converter is spaced according to ATI's specs...pull from trans at least 1/8" but no more than 3/16". It was a brand new converter both times also.
What could be causing it to push on the crank? Anyone else had this problem?
What could be causing it to push on the crank? Anyone else had this problem?
Thread Starter
Joined: Apr 2003
Posts: 871
Likes: 1
From: Whiteville, NC
I think I have found the problem. Looks like the converter hub bottoms out in spacer pilot hole and then pushes on the crank. I'm using a 4L80E flexplate and spacer. The spacer needs about .100" machined off.
Little things like this can cost you a ton!
Little things like this can cost you a ton!
