I have a GM Trac-Lock diff with a 3.73 ring and pinion gear on it. Used out of an 04 Avalanche. In good shape when pulled out and made no noise.
We upgraded the diff.
Also have a GM Trac-Lock carrier without gears out of an 06 Silveraldo in good working condition.

$350.00 for the diff lock with gears
$300.00 for the diff lock without gears.

 

How many miles on the unit?

 

What's a track lok differential? Is it the G80 locking differential or the GM limited slip differential?

 

These are both the G80 carriers. The one without the gears has about 40K on it the one with gears I'm not sure.

 

You want 300 bucks for a G80?

 

Make me an offer.

 

pm sent

 

u may get 150 for the g80 with the gears