Using the tape as alignment marks for the installing the glass is really key to getting it right the first time. I didn't use any tape when installing the rear trim. Guess I was lucky or careful enough because I didn't scratch the paint any. I will probably use it on the front though. I installed the new torsion bars today and will probably paint the shocks on Monday. I have to get some new dust covers, thought I had those but didn't. Here's a shot of the disc brake conversion using A-body spindles and 73 Challenger rotors, calipers and brake hoses.