Spindle ID

446acuda said
'73-4 or so B body spindles are the same as F/M/J spindles except that F/M/J are scalloped out between the caliper mounting holes on the spindle. I think they changed to the scalloped out style in '75. To put it another way, except for C body spindles, there are only 2 RWD car spindles for '73 and later. They are:
1. '73-later A and E spindle.
2. Everything else which includes '73-later B and all F/M/J. Coincidently, all have a rubber isolated K-frame

hemi71x said
They are the same in dimensions, and machining spacing wise, but the ARE NOT THE SAME in appearance, between the body styles that are being discussed here.

Yes, this.

‘73+ F/M/J/B/R spindles are the same dimensionally.

The B/R casting are different, but the dimensions are the same. The FMJ spindles are a little lighter.

The steering arms between the B/R bodies and the FMJ’s are NOT the same, just FYI. The lengths are actually different, so if you’re using those steering arms you need the B body ones.