Originally Posted by Denny Graham
Those early AD 3/4-ton front drums are the holy grail. Next
to impossible to find Dad. I got lucky a few years back and
found a pair of NOS 3847128 drums, Hope they'll last me
another 27 years.
http://www.pbase.com/dennygraham/image/160723376

Like to hear more about this Bendix conversion for the 3600
Ken. Will those backing plates just bolt up to the early
steering knuckles? The original reason for doing this was
because the drums were shot. How bout the drums for the
Bendix brakes, is the bearing spacing, diameter, seals and
all that the same as the Huck brake??? If it were, why
couldn't you simply use the later drums with the Huck
brakes??? They should both be 11".
Seems to me like there are a few of those tiny details
missing for a Huck to Bendix conversion.
dg

Later drums with huck brakes.
I actually considered that.
I found a drum, 11 1/8" diameter, on 8 lugs on Ebay.
Problem was it was a half inch too deep, and the guy wanted almost $200 for it.
It might have worked, but $200 with a no-return policy, still needing machine work to cut 1/2" off around the rim to reduce the depth?
I thought I'd keep looking.

Last edited by Hot Rod Dad; 09/06/2015 5:55 PM.
52 GMC 3/4 ton pickup
68 Big Block Vette
68 455 Firebird