1973-1976 Slider Brake Upgrade
This is the most cost-effective upgrade using OEM parts for drum brake vehicles. While the 11" diameter of this rotor of this upgrade is the same as the earlier disc brake, KH disc brake vehicle owners may consider this upgrade to obtain the more common 4½" BC for a better selection of aftermarket wheels. The implementation of this upgrade also allows the further upgrade of the braking system to the 11¾" B-Body rotor.
Upgrading to 1973-1976 slider disc brakes is slightly more complicated because the upper control arms must also be replaced. Since the front wheels now will have a 4½" BC, the original rear axle must either be replaced or modified with a new bolt pattern. This upgrade requires the following items:
- 1973-1976 slider disc brake spindles
- 1973-1976 slider disc brake dust shields
- 1973-1976 slider disc brake lower ball joint
- 1973-1976 slider disc brake hub & rotor assemblies
- 1973-1976 slider disc brake calipers & hoses
- 1973-1976 A-Body upper control arm
- disc brake master cylinder (MC)
- disc brake distribution/proportioning valve if you have a single reservoir MC
- new brake lines, including a new pair from the MC if you have a single reservoir MC
- 14" wheels
Slider disc brake conversion information:
- http://www.moparaction.com/Tech/archive/disc-main.html
- http://www.bigblockdart.com/techpages/dbconversion.shtml
- http://www.rowand.net/Shop/Tech/EarlyMoparDiscBrakeSwap.htm
As an alternative to buying used parts, complete new kits are available for this conversion: