Main British Car:
1974 TR6 Ford 5.0 HO
Re: TR6 Rear Disc Brake Brackets, CAD files for the taking
Posted by: dwtr6v8
Date: February 14, 2018 08:36AM
A very nice conversion with a different take on the e-brake setup, take a look.
Good work Kelly!
Regarding E-brake, I used new stock TR6 cables from Moss; I machined a trunnion to thread onto the end of each cable and fit in the caliper saddle to pull the e-brake mechanism. I used a 3/8 AN bolt - the unthreaded shank area. I think it is 4130 steel. Very strong. Drilled it with cobalt drill and tapped 1/4-28. I fabricated the brackets that attach the cable to the caliper from 1/4 x 1 cold rolled steel. Works perfectly. No modification to the cable necessary. Brake handle pulls up 4 - 6 notches for solid grab. Easy to adjust at caliper end as pads wear.
Also, I machined the caliper mounting brackets from 7071-T6 aluminum 3/8 thick. The alloy is much stronger per square inch than mild steel of the same thickness. Of course I upgraded the swing arm studs to 3/8.
Here are some pix of the e-brake set up and my engine / cockpit. And yes, I know, I need to get the airbox I fabricated polished!
Thank you once again.