I have a 51 Chevy 2dr HT with an X frame, who makes a PB booster set up to use in this. All I have found are too long, and the X is in the way. I looked (only) at the one gearhead uses, its too long even tho they say it will fit. I talked to PETE53E, that had a nice unit but according to his manufacturer it wont fit 2 dr HT & Conv. By the way PETE53E is an ebayer and super nice to talk with. I appreciated his insight and time. SOOOO some one come up with something.......... Tell me how you did it, STEVE