I am wondering if it is better to do with the frame bolted to the car to help align the skin and frame to the car or just to do it on the door off the car.

01 Viper GTS ACR
10 Challenger RT PCP 6spd
70 Challenger 440 6 pac
73 Cuda 416 Road Racer
70 Hemi Roadrunner
01 Ram 4x4 / 98 Ram 3500
91 Stealth RT
05 Durango Hemi
09 Caliber / 99 Dakota 4x4 / 52 Dodge B3B