Upgrading to 11.75” discs on the front?

72bluNblu said
To clarify, you are using stock sliding calipers? Not an SSBC conversion kit?

The 11.75" slider caliper brackets are reproduced. DoctorDiff is currently out of stock, but I'm sure he has an idea of when they'll be available. Supply chain issues have been affecting pretty much everybody in this industry
Mopar 11.75" Disc Brake Slider Caliper Brackets

DoctorDiff sells dust shields that will work with the 11.75" rotors. But dust shields in general are pretty useless, they do a better job of trapping brake dust and heat close to the rotor than anything else.

The 11.75" rotors use the same wheel bearings as all of the 73+ 10.95" rotors. If you have 73+ A/B/E/F/M/J/R spindles you can use 11.75" rotors as long as you get the 11.75" caliper brackets.

Yes. They use the same calipers, so the pads are the same. The only difference is that the factory '73-75 A-body slider calipers used 2.6" diameter caliper pistons. In '76 the A-bodies started using the same 2.75" pistons that the B/E bodies were already using. From there forward all the calipers had 2.75" pistons. As long as you match the type of caliper (slider vs pin type) to the style you already have, all you have to do is install the larger rotors and caliper brackets.

Wilwood Mopar 11.75" Front Disc Brake Kit (Stage 2 Plus)

thanks blu i was expecting you to stop by lol. im only running the ssbc rotors, stock style brackets and calipers. car stops about as well as i can ask for manual brakes but seems like its lacking some, they arent really spongy that i can tell. im running a 1-1/32” bore master which i now discovered from reading and talking to cass at dr diff probably should have been a 15/16” bore but the pedal really doesnt seem that hard to press to me. Is the larger bore master hampering my braking? I know either way i need to correct my calipers being upside down and swap them side to side so i can get the bleeders at the top. I bled them off the car but due to not having the right hoses i had to mount the calipers upside down. They never have been bled since which was about 8 years ago so they may have developed a tiny air pocket. Either way i plan to fix the calipers by swapping them back to the correct position and order correct hoses. Im just trying to decide the best route. So is there really no need in going to drilled/slotted rotors on a street car?