your 39 looks to be in decent shape,, 39 the first year of front IFS,, other then in 34 i think they gave it a whirl,,,,ford and GM of that ear still had a straight axel and truck style trailing arms,, A 341 would be great...but buying a 37 that has no useable parts to get it ???

im pretty sure 1939 and 40 front suspension are the same,, i have a 40 coupe,, 41 and up are different,,the lower control arms are the same 39 to 54,,,some of the suspension bushing are the same,,,lowers..all the same,,best up grade u can do are disc brakes,,,easy,,,,and move the upper shock mount from the control arm to the frame,, makes a world of difference,,I have a pair of NOS MOOOG upper control arms for the 1939/40 that are designed to look and work like the 1941 and up,,upper control arms,,feel free to ask,,,if i can help ide be glad too,,, i just did dropped up rights and new front coils,,, rack and pinion,,,on my 40 dodge