I have the Hotchkis (sb) on mine to. It did lower it about 2 inches on my convertible. Unlike bastereo, I have the stock exhaust and don’t have any bottoming out problems. Also no problems with tires rubbing, but that’s due to it being a ’69. I also upgraded the front sway bar to 11/4 inch. Remember if you lower the front end you will have to shorten the sway bar end links.