If you want to keep your firewall clean this is the way to go! We can put the M/C and booster under the floor on any chassis. It’s a good idea to cut an inspection plate hole in your floor, under the carpet, so you can fill the M/C. A 7-inch diameter booster is about the largest diameter that will comfortably go under the tri-five body.

The double-diaphragm 7-inch diameter booster is about as large a diameter that will go under the floor. The M/C has a 1-inch diameter bore to feed the 4-piston Wilwood calipers and the rear drum brakes. We offer complete -4 brake line kits for all of our tri-five chassis or we can plumb the chassis for you complete with brake line brackets welded to the frame with clips and bulkhead fittings, proportioning valve and stainless steel braided brake lines.

Looking at the bottom of the brake pedal and pushrod, you can see the 1 ½-inch diameter holes in the frame. The one nearest the frame rail is for plumbing, while the pushrod uses the upper hole.

Add A Clutch Pedal

The Jim Meyer unit emulates the original underfloor pedal arm design with optional M/C’s, boosters and proportioning valves available.