1954 belvedere 4 dr diff

[melvin]

What manufacture build the diff for the Plymouth and what rear end could take is place.  I believe its a 59" wide diff

[D35 Torpedo]

Jesus built my hotrod

[andyd]

From the question I assume you are upgrading the engine?........what engine is going in?.........andyd  

[melvin]

gm 350 w a 4l60e that I have around the shop.  also looks like a ford 9" diff.

[andyd]

Pretty sure that until the V8's came along Chrysler itself probably built the rear axle/diffs but if you are installing a 350/auto then a Ford 9" if you have one already makes sense......andyd