I'm working with a '34 Plymouth coupe that's on a '40 Ford frame. It's a fenderless car, and the proportions are wacky. My father-in-law built it in the '60s and used what he could scrape up to build a hot rod on a paper route budget. The '40 Ford frame was nearly free, so he cut the rear frame rails off and built his own rear suspension. He utilized the stock front crossmember and suspension. This resulted in some odd proportions due to the spring being in front of the axle and the giant '34 Pontiac grille. I'd rather not change the grille, since it's been with the car 50 plus years. I'm looking for opinions and some early Ford wisdom here...I haven't started disassembling anything yet. The plan in my head is retain the stock crossmember, but use an aftermarket "spring behind" axle kit. I realize clearance between the frame and axle shrinks as the axle moves forward (the frame rails sweep down), but I think I could remedy the clearance issue with the right combination of spring height and axle drop. I'm not concerned with making the car sit any lower than it does now. I just want the wheelbase to be longer. Here are a couple pictures of the car. Any guidance is appreciated.