Stacy:

The lift height of 6" will vary a little depending on torsion bar adjustment-also you are only adding one inch with 37's as said here--measure your H2 now--add 6" and you will be close.

As Phil said, you need some margin too---7-10 or 8' is good.

Maesure your garage door height before you drive it home! I have seen a few people lose some stuff on the top of their Hummer--like crossbars.

I didn't say I pass out, I said I fall down! Big difference!! And, I think, well, ah, maybe with most of my clothes on???

OH MY GOD!! WHERE DID YOU GET THAT PICTURE??? I thought I threw that one away!!