spindles
 

what is the differance between 37-41 41-48 spindles can 41-48 be used on a model a axle to mount hydl brakes

Re: spindles
 

Later model spindles have larger (taller) bushings along with a different appearance. They will fit a Model A axle.

Re: spindles
 

As rich b said, yes they can be used on a Model A axle, but be advised that the ‘37-‘41’s (also known as round backs) use a king pin 5 1/2” long and the ‘42-‘48 spindles (square back) take a 6” long k/p. You will want the correct k/p set for the spindles you choose.

Re: spindles
 

Here's a picture I've posted a couple of times before that shows the differences that others have mentioned. Basically the 1942-48 version are beefier than the 1937-41 but otherwise interchangeable.


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https://www.fordbarn.com/forum/attac...0&d=1603602210

Re: spindles
 

all that answered thanks for the great info

Re: spindles
 

The later one have a generally square appearance, the 37-41 are commonly called roundback.
Would it be correct to assume the later ones wear more slowly due to the longer bushes? (Everything else being equal). Probably made longer to compensate for the vehicles getting heavier???