Brake Hub help please! Sbp to bbp
I'm playing in waters that I'm not that familiar with, but let's see if I can figure out what's going on here:
66dvert's Scarebird setup assumes that you have a separate wheel hub. For old Mopars, this usually means "I have a hub because my existing brake setup has drums, and the drums are riding on the factory hubs." This allows you to mount the Chevy Caprice calipers on (usually re-drilled for SBP), like what you see in 66dvert's pictures.
That's fine if you're coming from a drum brake setup, but I'm not sure this is possible with a unicast rotor, or a two-piece casting with an integral hub (which is what you have, /72Scamp):
From the looks of the unicast version of the Kelsey-Hayes drum, there isn't ANY meat on the rotor to drill for a larger bolt pattern; it already has recesses in the rotor hat just for the 4" bolt pattern, much less anything larger.
What would be very interesting to know is whether a Kelsey-Hayes spindle will support a Mopar B-body 10" LBP drum brake hub. And only if so, will a Caprice rotor perfectly center itself between the Kelsey-Hayes caliper pistons? And would the Caprice rotor be wide enough for the K/H caliper design? And would the Kelsey-Hayes caliper clear the larger rotor hat?
If that whole gobbly-dee-gook I just said would work, there's your Kelsey-Hayes-to-LBP conversion on a silver platter.
Question: Does anyone have the bearing raceway specifications for the K/H spindles? I'm about ready to cut the swedged drums off my B-body hubs this weekend - or tomorrow - and can verify whether the hub specifications would match the K/H spindles. That'd be step #1.
Step #2 would be to measure the Caprice caliper from the inner hub flange to the center of the rotor surface.
Step #3 would be to throw a B-body hub onto a K/H spindle and measure the distance between the outer hub edge to the center of the caliper.
Step #4 would compare the measurements of step #2 and #3. If virtually identical, say "Hurrah!" and proceed with the swap.
-Kurt
I'm playing in waters that I'm not that familiar with, but let's see if I can figure out what's going on here:
66dvert's Scarebird setup assumes that you have a separate wheel hub. For old Mopars, this usually means "I have a hub because my existing brake setup has drums, and the drums are riding on the factory hubs." This allows you to mount the Chevy Caprice calipers on (usually re-drilled for SBP), like what you see in 66dvert's pictures.
That's fine if you're coming from a drum brake setup, but I'm not sure this is possible with a unicast rotor, or a two-piece casting with an integral hub (which is what you have, /72Scamp):
From the looks of the unicast version of the Kelsey-Hayes drum, there isn't ANY meat on the rotor to drill for a larger bolt pattern; it already has recesses in the rotor hat just for the 4" bolt pattern, much less anything larger.
What would be very interesting to know is whether a Kelsey-Hayes spindle will support a Mopar B-body 10" LBP drum brake hub. And only if so, will a Caprice rotor perfectly center itself between the Kelsey-Hayes caliper pistons? And would the Caprice rotor be wide enough for the K/H caliper design? And would the Kelsey-Hayes caliper clear the larger rotor hat?
If that whole gobbly-dee-gook I just said would work, there's your Kelsey-Hayes-to-LBP conversion on a silver platter.
Question: Does anyone have the bearing raceway specifications for the K/H spindles? I'm about ready to cut the swedged drums off my B-body hubs this weekend - or tomorrow - and can verify whether the hub specifications would match the K/H spindles. That'd be step #1.
Step #2 would be to measure the Caprice caliper from the inner hub flange to the center of the rotor surface.
Step #3 would be to throw a B-body hub onto a K/H spindle and measure the distance between the outer hub edge to the center of the caliper.
Step #4 would compare the measurements of step #2 and #3. If virtually identical, say "Hurrah!" and proceed with the swap.
-Kurt
