Bigger Rear Shocks

I just put on 15 inch rims and tires...they were rubbing around the wheel well where the trim goes, but not that bad after I put some shckles on there. Well they still rub, but only when I go over a really big bump and some little ones around curves...the question is...does anyone know a longer rear shcok that will help me move the shackle up one more notch...cause if I try tomove it to the second hole now it will run out of extension in the shock. Make sense? I'm not a fan of air shocks, but am willing to listen to advise. The car does ride well with 15's...and these 15's are the old school type from American Racing...they look like the facotry mags...thanks all.

YoSteve
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