i have a ls1 t56. just had it double checked at t56 inc.
im using the truck pilot bearing cuz page 1 says use car or truck bearing. they game me the ls1 car pilot bearing and said thats what i need but it is smaller than the truck pilot bearing and doesnt look like it will fit in my crank

 

What bearing are you using?

 

i have a 99 silverado 4.8 and 4l60e

 

1st one

 

Pull it out and use the second style one. The one pictured it the bushing style I run the ball bearing style. Then again the 99 maybe dirrerant. Any one do a 99 yet that can help him out?

 

It sounds like you have the same problem I did. Get one for a 98-02 Camaro like 1TRUESS said and it should work.

 

I know there were 2 different cranks for the 4.8 back in 99 and 2000. One for manual trans truck and one for autos. The 5spd one has a flange that sticks out about a 1/2" more than the auto version. The auto version is like the 5.3/5.7 and later 6.0's. You might have the different crank, although I can't imagine how or why unless your truck originally had a 5spd.

 

https://www.performancetrucks.net/fo...d.php?t=331673

This guy did the swap way back and he ran into some similar problems. Do a search under his name and you'll find more info.


The first thing I would do is bolt up your flywheel with the bell housing and then bolt up the starter. See if it will line up with the teeth on the flywheel when the solenoid is engaged. That will tell you if the crank is right on not.

Just trying to eliminate some variables here.

 

the car bearing is half the size. how does that fit in the hole twice its size for the truck bearing?

 

the starter lines up fine.. ill try another pilot bearing tomorrow and see what happens i guess