Been looking for brake drums for this axle for awhile with little luck, axle flange offset further out than HO35 so those drums would have the shoe contact too far out near the outside. Finally got drum for early '70's K5 blazer - K10 pickup (NAPA (ND) 4401200). Heavier drum with cooling fins. Had to drill stud holes out a bit to go over the shoulder on the wheel studs.
BC 1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc 1949 GMC 250 project in waiting 1960 C60 pasture art Retired GM dealer tech. 1980 - 2022
BC, That looks like a perfect fit with the new drums having lots of fins for heat dissipation. What size did you drill the stud holes out to?
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
I'd have to go look, used a step drill, went I step up. slid them on, fit over the shoulders of the wheel studs. In hindsight I may have been able to replace wheel studs with something without the shoulder. Good to have this sorted out while I had things apart to change the gears from 3.73 to 4.10 which will work better with the rest of the powertrain here in the Blue Mountain of N.E. Oregon!
Should have everything ready to go once the snow melts, which isn't the direction things are going now.
Last edited by BC59; 04/10/20256:06 PM.
BC 1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc 1949 GMC 250 project in waiting 1960 C60 pasture art Retired GM dealer tech. 1980 - 2022
Driving in the mountains is another great reason to use these drums. I'm sure you're familiar with brake fade on those down grade runs - The extra meat and fin cooling capability should make mountain braking much more reliable and safe IMHO.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
Mid 60s Pontiac Bonnevilles have 11x2 finned front drums. You'd have to redrill for 6 lugs.
Check Rock Auto to see pictures of every drum on just about every car ever made. `
Last edited by Otto Skorzeny; 02/18/20253:36 AM.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
The extra meat and fin cooling capability should make mountain braking much more reliable and safe IMHO.