[tomp]

Truxx kit is a waste of money and is a rip off. Go with the green keys from Chevy

OEM length shocks will be a problem before needing to replace the UCAs as the shocks are first limiting factor. You can get 1.5-2" of lift in front using OEM UCAs but your ball joints will wear out quickly. There is a point where the OEM UCAs will not allow you to fall within OEM alignment specs, so if you go to far - you will need to opt for Cognito UCAs

Before you hit a full 3" of lift in front, you will start getting half-shaft or CV joint vibrations at 70+mph. With 37s, the safe mark is 44.5" from ground to bottom of fender flare.

Uni-ball Cognito UCAs are very nice and will allow max height of 44.5" (with 37s) from ground to bottom of fender flare and still fall into OEM alignment specs. The Uniballs will never need replacing and may last life of H2.

Tim..only thing you might want to add to list id the Borgeson Steering shaft. It is "optional" but if you are looking to build ultimate non-lifted H2 - this is nice mod. It will further tighten steering as it rids it of slop in the shaft. Also rids clunk... Also, dont forget the tru-cool tranny cooler and the Diablo programmer to recal speedo for larger tires and deactivate GM torque management for "power on demand". Don't forget the Hutchison beadlocks Tim!!! Also, dump all drivetrain fluids and pour in Redline for big improvement

For those arguing about the 38s, Tim is right. He has owned more Hummers than all of us and offroads them too so you might want to heed his advice. You can't do 38s without at least a 4-6" lift without major rubbing issues and even then will still rub pretty bad offroad.

Summitup is on track as well.