The AD-Engineering mount stands are above the top of the frame by at least 6" plus they use the S10 mount cushion which must be nearly 1 1/4 inches thick and the rear cab mounts have a 2" spacer on top of the S10 cushion. We use an old 50 chevy 3 window "mule" that has all the sheet metal welded in place---the fenders to cab, cab to bed (with spacer), and a working properly gapped hood and doors. This whole "end to end" truck is then lowered down over the S10 (or other) chassis and as suggested the front wheels are centered in the fender openings and the rear end is mounted so it's also centered. With all the sheet metal in the right place any gap between the body and mount is fitted with the proper shim. The slightly longer S10 wheel base puts the rear wheels dead on. Are you sure your frame is from a regular cab long bed? Here are some pics of an S10 set up: first shows finished 5W truck, second shows S10 frame with AD-Engineering mounts in place, third shows sheet metal all together but not on frame (hadn't welded bed assembly to cab yet), and fourth shows "mule" mounted to S10 frame. http://s32.photobucket.com/albums/d41/coilover/

Evan