The 1500 truck frame and suspension will be too high and too wide for your 46 Chrysler. Best to find a Dakota frame, we used a front clip from a 1996 Dakota and welded it to the 1940 Frame at the firewall. It works perfectly, we did have to move the engine back 8 inches relative the the front wheels in order to fit between the firewall and radiator on the 1940 Chrysler. Keeping the 1940 frame from firewall back meant we could use all the body mounts....and there are lots of them!!
