i did this on my BJ a while back, i used the lighter shocks and found it a little underpowered, i have the insulation removed and am wanting to put damplifier or something on in the future but will probally have to upgrade to the heavier shock. My pin locations on the fender may be different than that of a gasser so that might have something to do with it, SO>>> in hindsight i would have went with the cat launchers even though they seemed like too much push for the hood..