They lift tires before they flex. The afvantage to them though is you can put 35s with the 4" lift and moteratly wheel and they wont rub.
86Jimmy 4"&35"MTRs,87 burb 4"&35"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>