Hi. I have a 64' Dart GT convertible I'm going to sell soon. It's all original v-8 auto, P/S, manual top. The only up grades are 75' a-body disc brakes and control arms, .87 torsion bars, the 75' rear end (all wheels are 5 by 4 1/2), with 2.76 gears, heavy duty rear springs, and 2002 Sebring...