in 1934 mopar went to a goofy independent front suspension, then went back to parallel leaf springs and a tube axle until the 1939 models.
my 38 plymouth coupe had the tube axle, so to lower it, i swapped the axle pads and put the axle above the springs.
i used an iron corvair box [reversed] for steering, and it worked really good !
that car came with the usual smallblock chubby, so i ditched that for an E58 360 cop engine/727, 8 3/4 rear from a 1970 chrysler [bolted right in] used 3.91 gears, and that car was a pretty good runner !