I have a Wilwood 12.19 rear disc brake kit for a GM 12 bolt.
This kit is
brand new, mocked up but
never used
This Pro-Series rear disc kits provides a complete solution for rear axles that require a parking brake. Forged billet Dynalite four piston calipers, 12.19” one-piece drum/rotors, and high friction pads provide optimized and balanced braking. The neatly hidden internal shoe system provides a clean installation with superior static holding power for parking.
Wilwood Brake-700.00 *SOLD brake kit*
For those that asked, the axle housing is 55" end to end, and 52 3/4" flange to flange.
I also have these items listed as well-
LINK
12 bolt- 950.00
4 Link- 350.00
Complete package- 1300.00
SOLD!