Help identifying Disk brakes

[Cevidicus]

I found these today in the parts stash... I've spent the last hour plus searching the net trying to find out what they are off of.

Caliper bracket says 90425

Caliper says KH90 795

Rotor says 934

The Rotors are 11.75"

I think these may be later B-body units but Im not sure.

If anyone has any Idea what they are or how to find out, Pease let me know.

Thanks,
C

 

[805moparkid]

i think somebody just posted today that the 11.75 are the FMJ stuff...

 

[Cevidicus]

I know the later b bodies are also 11.75 units. I picked up some info on Mopar Actions Discko Tech article, But Im still confused...

 

[hemi71x]

From what i see in your pictures, and your description of the parts, you have later 70's B body disc brake parts.
One visable give away is where the brake hose is mounted on the bottom end of the caliper.
For me, that's one way that i can tell between early 70's calipers, and later ones.
By the hose location.