f7sp
Active VIP Member
I was looking at buying an 06 duramax which comes with 6 speed.This truck appears to have the lly engine instead of the lbz, going by the vin. I assumed all of the 2006 trucks came with the newer engine, and also assumed all of the lly engines came with a 5 speed Allison. Will this lly be as good as the lbz? Truck has about 180,000 Km's on it.