Packard Forum Index » Post-War (1946-54)

Does anyone know off the tops of their heads (or where best to look) if a rear end from a 1954 Patrician would fit easily under a 1947 Super Clipper? Seems to me that the latter with its slush box probably has something in the region of 3.54:1 gearing versus the 4.10:1 or so likely found out back in the '47. Thoughts, comments, queries, observations.


Thank you in advance.

I don't have any answers, but something else to think about is if the brakes are compatible.

I know a 54 Senior complete rear axle has been swapped under a '37 120 to go from a 4.xx to 3:54. The bolt pattern was the same 5x5. Obviously, you would now have to use the '54 rear drums and rear brakes. Also, the axle spring perches may need to be moved (cut, moved, welded), and depending on any driveshaft to differential spacing differences and u-joints, the driveshaft may need to be altered to match.

This is my plan for my 37 115C, where an overdrive would be a hard fit due to its proximity to the frame x-member and its adaptation to the cane shift.

Looks pretty darn similar though the leaf spring attaching bracket is noticeably a little different and I don't know on dimensions.

packardinfo.com/xoops/html/modules/parts ... lateNumber=2842&partslist=1941-1947

packardinfo.com/xoops/html/modules/parts ... PlateNumber=112&partslist=1948-1954