Looking for aftermarket parts to modify or upgrade your 1978 GMC Jimmy with big brake kits? At Tunersports.com we carry a huge selection of the top name brand performance big brake kit parts and accessories for your Jimmy.
Whether you have a 1978 GMC Jimmy in Base to Street Coupe trim we have you covered. We have 51 big brake kits available to mod your Jimmy. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS 140-10941AERO4 Rear Parking Brake kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake. Forged AERO4 four piston calipers, 14" two-piece rotors, and high performance BP-10 compound pads provide optimized and balanced braking to compliment front big brake... Wilwood AERO4 Rear P-Brake Kit 14.00in Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,275.99 |
 IN STOCK - LOW 140-10941-DAERO4 Rear Parking Brake kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake. Forged AERO4 four piston calipers, 14" two-piece rotors, and high performance BP-10 compound pads provide optimized and balanced braking to compliment front big brake... Wilwood AERO4 Rear P-Brake Kit 14.00in Drilled Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,275.99 |
 IN STOCK - DROPSHIPS 140-10941-DRAERO4 Rear Parking Brake kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake. Forged AERO4 four piston calipers, 14" two-piece rotors, and high performance BP-10 compound pads provide optimized and balanced braking to compliment front big brake... Wilwood AERO4 Rear P-Brake Kit 14.00in Drilled Red Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,275.99 |
 IN STOCK - DROPSHIPS 140-10941-RAERO4 Rear Parking Brake kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake. Forged AERO4 four piston calipers, 14" two-piece rotors, and high performance BP-10 compound pads provide optimized and balanced braking to compliment front big brake... Wilwood AERO4 Rear P-Brake Kit 14.00in Red Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,275.99 |
 OUT OF STOCK 140-13692AERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. For cars, it's the biggest of the big providing big brake performance for show and dual purpose street and track vehicles. For trucks and SUV... Wilwood AERO6 Front Hub Kit 14.00 Chevy C-10 60-87 CPP Drop Spindle 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,445.30 |
 OUT OF STOCK 140-13692-DAERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. For cars, it's the biggest of the big providing big brake performance for show and dual purpose street and track vehicles. For trucks and SUV... Wilwood AERO6 Front Hub Kit 14.00 Drilled Chevy C-10 60-87 CPP Drop Spindle 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,445.30 |
 OUT OF STOCK 140-13692-DRAERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. For cars, it's the biggest of the big providing big brake performance for show and dual purpose street and track vehicles. For trucks and SUV... Wilwood AERO6 Front Hub Kit 14.00 Drilled-Red Chevy C-10 60-87 CPP Drop Spindle 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,445.30 |
 OUT OF STOCK 140-13692-RAERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. For cars, it's the biggest of the big providing big brake performance for show and dual purpose street and track vehicles. For trucks and SUV... Wilwood AERO6 Front Hub Kit 14.00-Red Chevy C-10 60-87 CPP Drop Spindle 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,445.30 |
 IN STOCK - DROPSHIPS 140-15305AERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. These kits are for he popular 1963 thru 1987 Chevrolet & GM C10 / C15 Trucks with Wilwood's new Modular Drop Pro Spindles. AERO6 Big Brake K... Wilwood AERO6 Front Hat Kit 14.00 63-87 C10 w/ Wilwood Pro Spindles 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,359.99 |
 IN STOCK - DROPSHIPS 140-15305-DAERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. These kits are for he popular 1963 thru 1987 Chevrolet & GM C10 / C15 Trucks with Wilwood's new Modular Drop Pro Spindles. AERO6 Big Brake K... Wilwood AERO6 Front Hat Kit 14.00 Drilled 63-87 C10 w/ Wilwood Pro Spindles 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,359.99 |
 IN STOCK - DROPSHIPS 140-15305-DRAERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. These kits are for he popular 1963 thru 1987 Chevrolet & GM C10 / C15 Trucks with Wilwood's new Modular Drop Pro Spindles. AERO6 Big Brake K... Wilwood AERO6 Front Hat Kit 14.00 Drilled Red 63-87 C10 w/ Wilwood Pro Spindles 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,359.99 |
 IN STOCK - DROPSHIPS 140-15305-RAERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. These kits are for he popular 1963 thru 1987 Chevrolet & GM C10 / C15 Trucks with Wilwood's new Modular Drop Pro Spindles. AERO6 Big Brake K... Wilwood AERO6 Front Hat Kit 14.00 Red 63-87 C10 w/ Wilwood Pro Spindles 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $2,359.99 |
 IN STOCK 140-12569D154 Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged D154 dual piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom performance street/strip a... Wilwood D154 P/S Park Brake Kit Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $897.68 |
 IN STOCK - LOW 140-12569-DD154 Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged D154 dual piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom performance street/strip a... Wilwood D154 P/S Park Brake Kit Drilled Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $1,022.68 |
 IN STOCK 140-12569-DRD154 Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged D154 dual piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom performance street/strip a... Wilwood D154 P/S P-B Kit Drilled-Red Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $1,022.68 |
 IN STOCK - DROPSHIPS 140-12569-RD154 Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged D154 dual piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom performance street/strip a... Wilwood D154 P/S Park Brake Kit Red Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $897.68 |
 IN STOCK - DROPSHIPS 140-11290Wilwood's D52 Front Caliper Kit is a direct bolt-on 2 piston replacement for the factory original single calipers on many 1968-96 GM Passenger Vehicles and Trucks. Forged billet aluminum bodies, stainless steel pistons, and competition style high-temperature seals put an end to the rust, bore pittin... Wilwood D52 Front Caliper Kit - Black Ano 2.00 / 2.00in Piston 1.28in Rotor 1975-1982 GMC Jimmy Sierra Grande 1975-1985 GMC Jimmy High Sierra 1975-1990 GMC Jimmy Sierra Classic 1975-1991 GMC Jimmy Base 1978-1982 GMC Jimmy Street Coupe $440.11 |
 IN STOCK 140-11290-BKWilwood's D52 Front Caliper Kit is a direct bolt-on 2 piston replacement for the factory original single calipers on many 1968-96 GM Passenger Vehicles and Trucks. Forged billet aluminum bodies, stainless steel pistons, and competition style high-temperature seals put an end to the rust, bore pittin... Wilwood D52 Front Caliper Kit - Black Pwdr 2.00 / 2.00in Piston 1.28in Rotor 1975-1982 GMC Jimmy Sierra Grande 1975-1985 GMC Jimmy High Sierra 1975-1990 GMC Jimmy Sierra Classic 1975-1991 GMC Jimmy Base 1978-1982 GMC Jimmy Street Coupe $440.11 |
 IN STOCK 140-11290-RWilwood's D52 Front Caliper Kit is a direct bolt-on 2 piston replacement for the factory original single calipers on many 1968-96 GM Passenger Vehicles and Trucks. Forged billet aluminum bodies, stainless steel pistons, and competition style high-temperature seals put an end to the rust, bore pittin... Wilwood D52 Front Caliper Kit - Red 2.00 / 2.00in Piston 1.28in Rotor 1975-1982 GMC Jimmy Sierra Grande 1975-1985 GMC Jimmy High Sierra 1975-1990 GMC Jimmy Sierra Classic 1975-1991 GMC Jimmy Base 1978-1982 GMC Jimmy Street Coupe $440.11 |
 IN STOCK - DROPSHIPS 140-10094This group of FDL Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged billet Dynalite four piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom pe... Wilwood Forged Dynalite P/S Park Brake Kit Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $978.86 |
 IN STOCK - DROPSHIPS 140-10094-DThis group of FDL Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged billet Dynalite four piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom pe... Wilwood Forged Dynalite P/S Park Brake Kit Drilled Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $1,103.86 |
 IN STOCK - LOW 140-10094-DRThis group of FDL Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged billet Dynalite four piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom pe... Wilwood Forged Dynalite P/S Park Brake Kit Drilled Red Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $1,103.86 |
 IN STOCK - LOW 140-10094-RThis group of FDL Pro-Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged billet Dynalite four piston calipers, 12.19" one-piece drum/rotors, and high friction pads provide optimized and balanced braking for all types of custom pe... Wilwood Forged Dynalite P/S Park Brake Kit Red Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $978.86 |
 IN STOCK - DROPSHIPS 140-11385Forged Dynapro Low-Profile Pro-Series rear disc brake kits provide a complete solution for popular muscle car rear axles on applications that require a parking brake assembly and extra clearance for 14.00" to 15.00" rim applications. Forged billet Dynapro Low-Profile four-piston calipers 11.00" one-... Wilwood Dynapro Low-Profile 11.00in P-Brake Kit Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $978.86 |
 IN STOCK - DROPSHIPS 140-11385-DForged Dynapro Low-Profile Pro-Series rear disc brake kits provide a complete solution for popular muscle car rear axles on applications that require a parking brake assembly and extra clearance for 14.00" to 15.00" rim applications. Forged billet Dynapro Low-Profile four-piston calipers 11.00" one-... Wilwood Dynapro Low-Profile 11.00in P-Brake Kit Drilled Chevy C-10 2.42 Offset 5-lug 1975-1982 GMC Jimmy Sierra Grande 1975-1984 GMC Jimmy Base / High Sierra 1978-1982 GMC Jimmy Street Coupe 1978-1984 GMC Jimmy Sierra Classic $1,103.86 |