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Hummer H2 rear coil upgrades for 1st Gen, Avalanches. - LIFT

Oberloh

Full Member
Joined
Dec 2, 2020
Messages
109
Location
Northern California
Has anyone who has done the conversion remember the part number of the springs? Also, how much lift did it provide and how much increase in payload capacity? Thank you for your help.

Don 0.
 
Did not know anyone did this?

Why?
Doubt you would get lift as the shocks would limit it.
 
The shocks are not a big concern because the current shocks might as well be in need of replacements soon anyway. They also have to be changed but am trying find out what the hummer springs create. The H2 coils are much thicker and taller with a higher payload from what suspension shops have told me. Multiple Avalanche owners have used H2 coils which allowed them to run 35’
 
Last edited:
Has anyone who has done the conversion remember the part number of the springs? Also, how much lift did it provide and how much increase in payload capacity? Thank you for your help.

Don 0.
Of course shocks to be determined by the resulting by additional length of the new springs. As well as longer front shocks after 3" add-a-leaf in front also
 
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