Help! Need info on 8 3/4 brakes

ROCKAUTO has what you need. Here are few part numbers These are for 10x2 1/2 brakes you can double check to make sure.

RAYBESTOS Part # H7129 {Professional Grade #H7038}
Rear; 10" Brakes
Front; 10" Brakes

RAYBESTOS Part # H1523 {Professional Grade}
Front; Right; Front Drum Brakes; Rear Drum Brakes; 10" Brakes
Rear; Right; Front Drum Brakes; Rear Drum Brakes; 10" Brakes (Only 2 Remaining)

RAYBESTOS Part # H1522 {Professional Grade #H15222}
Front; Left
Rear; Left; Front Drum Brakes; Rear Drum Brakes; 10" Brakes
Front; Left; Front Drum Brakes; Rear Drum Brakes; 10" Brakes

WAGNER Part # WC106315
Rear; 15/16" Bore

WAGNER Part # Z169R {QuickStop}
Rear; 10 x 2-1/2" Brake
Front; Exc. H/D; Police; Taxi; Trailer Tow; 10 x 2-1/2" Brake
Front; 10 x 2-1/2" Brake