JP, Due to extensive use of aluminum, the Duramax 6600 winds up being nearly the same weight as a fully equipped 6.5TD - ~835-lbs or within 10-20 lbs, if I remember correctly. The 1500 series trucks and Suburbans were offered with the 6.5TD/4L80-E, so the added weight isn't a big deal for this chassis. Although, the Duramax/Allison is definately heavier than the 5.7L gasser/TH700R4 that it replaced...

Other than leveling the front with a minor torsion bar adjustment, no height adjustment was made, and the front suspension is not on the bump stops.

If all goes according to plan, I'll be driving this truck to MI next summer. [img]smile.gif[/img]

MP