Evil Gnome

My 98 LS1/T56 motor blew up... I swapped in a 6.0l out of a 2005 GMC Sierra. It seems to me that where the t56 trans shaft slides indo the crank( after the teeth on clutch) that the shafdt bottoms out....... It seems that the shaft is to long, or is something just not lining up....Everyone ive talkd to and everythng ive read says its a directg fit and swap, minus the accesories.....can anybody help feel frre to inbox me or help me here, i need to get the car from hell back on the road.....

lizeec

iTrader: (57)

Check your pilot bearing I believe the Fbody and the trucks use different styles of pilot bearings, the truck one sits in a different register in the crank and is larger in size, you need the Fbody pilot bearing which sits in a register further inside the crank.

71ANTICARB

iTrader: (23)

Did you take the crank spacer off.

97s10ls

iTrader: (1)

I have a 2002 lq4 and a 98 t56 and mine went right in. Removed spacer used a ram pilot bushing not bearing and worked perfect.

71ANTICARB

iTrader: (23)

Mine is a 01 with a bearing. I just went to the parts store and asked for a bearing for a 02 z28.

Evil Gnome

I need to go get the new bearing for inside the crank...thats a deffinate....but what spacer? there was no spacer on the old crank... can someone post a pic or tell me what i need to get from the parts store?...will spacing it cause any clearance issues?

Fahrenschnell

iTrader: (1)

You should not have a spacer to remove.

Project GatTagO

iTrader: (7)

A picture of your pilot bearing would help. I bet you got the wrong bearing at the parts store.

Andrew

the_merv

iTrader: (88)

Stock 6.0l with a 4L80E will have a Spacer..remove that before installing the LS Flywheel & Clutch.

Make sure you use the F-body Pilot Bearing, not the Corvette one.

71ANTICARB

iTrader: (23)

Ask the parts guys for a pilot bearing for a 02 z28.

71ANTICARB

iTrader: (23)

After you remove the spacer the crank flange will be almost flush with the seal.

the_merv

iTrader: (88)

Ya take that Spacer off..

Evil Gnome

The Merv---Thnk you...

And i just picked upo the bearing for an 02 Z28, and since i gotta take the flywheel and clutch back off does the spacer come off easily or is it pressed on

lizeec

iTrader: (57)

Don't forget you are going to need the correct flywheel mounting bolts after you remove the spacer those bolts will be too long, if you have the old bolts from your first motor those will be the correct bolts.

Evil Gnome

I have all the bolts from the ls1, now in the picture above, is that what i need to take off th 6.0 block......havent been to the shop to start yet, had a bit of running to do thismornin goin to start this evening

Pocket

iTrader: (22)

I hate to be the bearer of bad news but thats the oddball extended crankshaft for the very early 6.0's. You cant remove that spacer, the crank has to come out. If someone said they pulled that from an 05, they're lying. The crank spacer/adapter is aluminum. Your pic shows rust so its part of the crank itself

KagA152

iTrader: (23)

do you have iron or aluminum heads? my lq4 is from an 01, used a pilot bearing from an fbody, everything went together as planned

oct03gto

iTrader: (15)

Ouch, that sucks. I have a 2005 Chevrolet Silverado 2500 HD LQ-4 and had no issues. Had the 4L80E trans, and the spacer was part of the flexplate. Poped my pilot bearing in and no issues.

Goldhawg

iTrader: (7)

Glad I'm seeing this...had no idea of spacer issue. Not trying to hijack, but think my ??s on point. Can you be more precise, is the spacer the part that the bolts thread into or the piece on the ID? How does one pull this spacer off? See my pics below, engine is 2010 6.0 L96.

Also, I have my HD pilot bearing that came with the new LS7 clutch I'm putting in and I noticed it has two different surfaces. I assume you want the solid side out to tap in with large socket?

Thx!

71ANTICARB

iTrader: (23)

I posted that pic up as an example of what the spaced crank looks like it is not his engine. And the spacer I took off my 01 was steel. I have not seen an aluminum one.