Spindle Help

casting number is

3402738N124

1.375 (+.020 in a couple of spots)on the inner race

Looks like set 17 bearing which is same as A body BBJ stuff.

Maybe measure outer bearing surface and cross ref stuff at rock auto. :) If it's .75" see next line.

Guessing set 17 and set 2 bearings

Parts book 1973 - A body spindle with drum brakes 3402739