Advanced Adapters Dual Chamber Master Cylinder Kit - 4-Wheel & Off-Road Magazine

Fred Williams Brand Manager, Petersen’s 4Wheel & Off Road

Old Jeeps had their pedals go through the floor to an underbody master cylinder for the brakes and some arcane linkage to engage the clutch. It actually worked fine, until someone swapped engines or changed transmissions, or the old Jeep got used and abused for 60-some years. Eventually the pedals, which attach to the frame, twist left as the body twists right while off-road, and the next thing you know the pedals bind up at the worst possible moment.

e Z Upgrades Bad Brakes Gone Good pressing Brake Pedal Photo 37964088

We considered swapping in later-model Jeep swinging pedals and then came across a complete kit from Advance Adapters designed for a dual-chamber master cylinder that works both the brakes and a hydraulic clutch slave. We quickly converted our ancient off-roader into something a little more modem.

PhotosView Slideshow The Advance Adapters kit includes a swinging pedal bracket that must be mounted securely to the firewall. Be sure your seats are located exactly where the driver is comfortable prior to drilling the mounting holes and firewall pass-through holes for the brake and clutch push rods. The steering column will eventually run between the pedals. The new master cylinder is still just a singlebrake master so you may wish to add a brake proportioning valve. The included master cylinder is only recommended for manual drum brakes, but a larger disc brake master could easily be adapted. The new hydraulic clutch and AA-supplied clutch slave cylinder remove all the complicated mechanical clutch push rods and now require just a flexible hose.