by akaFrankCastle » Thu Mar 31, 2011 8:42 pm
Yeah, I'm an idiot. I did wind up with a wrong part, but one I never thought to check.
Below you see two backing plates. The one on the left is from my first attempt at spindle pulling. Turned out to be a late 76/77 truck and had the larger diameter spindles on it. The one on the right is from my second day at the salvage yard. Early 76 K10 with the appropriate sized spindles. Notice a difference?

Turns out the backing plates are shaped differently. Below you'll see the distance between the flange and the back side of the plate. A scoch short of 2" if my tape isn't lying. This is the late 76/77 plate.

And here is the early 76 plate. Not only is the distance a little larger, the area around the point where the caliper mounts is actually shaped differently.

Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project