Front Axle info Ford














How to Identify early Ford types front axles...

1928-1931
Model A axles
Uniform curve from end to end
The spring perch bosses are 2 1/4 inches

1932
First Ford axles to be made with a slight drop
Often referred to as 1932 heavy axles
Unique among early Ford axles in having a wider recess at the ends, and a slightly raised
area on the front and back of the spring perch bosses in the shape of an I-beam
Spring perch bosses are two inches.

1933-1936
Narrower recesses at the ends and along the center (compared to the '32 axles)
Spring perch bosses are two inches.

1937 V8-60
The only early Ford axles that are hollow forgings
They are flat along the front and back, so their cross-section resembles an oval track with short straightaways.
They are relatively lightweight and not recommended for heavier cars!
Spring perch bosses are 2 1/4 inches.

1937-1948
NOT recommended for earlier hot rods
All of the early Ford axles that were made from 1937 through 1948 have shorter distances between the kingpin bosses and the spring perch bosses. When these axles are being dropped, there is less material to work with, so they can't be dropped as far as the '28-'36 axles, and they don't look as good eather!
Also, with the perch bosses being farther apart, this places the wishbones closer to the tires, making the trailing edge of the tires more likely to hit split wishbones on tight turns. Spring perch bosses on all '37-'48 axles are 2 1/4 inches.

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