Upgrade your GM 10- and 12-bolt rear axle with this all-in-one disc brake conversion kit , engineered for classic midsize GM vehicles and designed to deliver superior performance, ease of installation, and long-term reliability.
Key Features & Highlights
- Zinc-coated drilled & slotted rotors offer enhanced heat dissipation, corrosion resistance, and improved stopping power.
- 5-lug bolt patterns supported : compatible with 5×4.5″, 5×4.75″, and 5×5″ wheels.
- Black powder-coated bolt-on caliper brackets : rugged, stylish, and no welding required for installation on standard flange housings.
- Silver Zinc-coated or Black Powder-coated GM metric single-piston calipers with pads included (e-brake optional) : match factory-style braking and deliver smooth, reliable stopping power.
- Stainless steel brake lines pre-plumbed or supplied for a durable, maintenance-free install.
- Full hardware kit included for fast, hassle-free conversion — brackets, rotors, calipers, pads, lines, and mounting bolts.
- Bolt-on, no welding required , with a typical install time of just a few hours.
Fitment & Compatibility
This kit fits GM midsize rear ends including :
- Pontiac Firebird (1968–69)
- Buick Skylark (1964–77)
- Chevy Chevelle (’64–’73)
- Chevy Nova/Chevy II (’64–’79)
- Chevy El Camino (’64–’77)
- Camaro (’67–’69)
- Monte Carlo (’70–’77)
- Oldsmobile 442 & Cutlass (’64–’77)
- Pontiac GTO, LeMans, Tempest (’64–’73, ’64–’77, ’64–’70 respectively)
Important : Does not fit full-size GM cars (e.g. Bel Air, Impala), pickups, 7.5″ 10-bolt axles, or rear ends with staggered shock mounting.
Axle Flange Requirements
Ensure your axle meets these critical dimensions for bracket fitment:
- Top bolt holes: 3-1/8″ center-to-center
- Bottom bolt holes: 2-11/16″ center-to-center
- Vertical spacing: 2-7/16″ between top and bottom bolt centers
Why Choose This Kit?
- Superior braking performance over stock rear drums — modernized stopping power for vintage vehicles.
- Bolts directly to your existing housing — no fabrication or welding needed.
- Includes GM metric calipers, pads, brake lines, and premium rotor hardware, saving you additional purchases.
- Offers flexible wheel options thanks to multi-pattern bolt spacing.
- Clean, corrosion-resistant finish from zinc plating and black powder coating.
Kit Contents
- Zinc-coated drilled & slotted rotors (vented, 11.25″ diameter)
- Multi-pattern rotor bolt configuration (5×4.5″, 5×4.75″, 5×5″)
- Black powder-coated bolt-on caliper brackets
- Silver Zinc-coated or Black Powder-coated GM metric single-piston calipers with pads, optional: e-brake calipers
- Optional: E-brake cables
- Stainless steel brake lines
- Full set of installation hardware, including bolts and mounting components
Note Before Ordering
- Not compatible with full-size Chevy/GMC cars (e.g. Biscayne, Bel Air, Impala). If your vehicle is one of these, this kit is available here.
- Not compatible with pickup truck rear ends, 7.5″ 10-bolt, or staggered-shock housings. Please call or email us to order this kit. Listing is coming soon.
- Confirm your flange meets the listed dimensions before purchasing.
