drums worth it? what do i need

The 11.75” disks up front and 11x2.5” drums out back are a big improvement over the 10.95” disks and 10x2.5” drums. I ran the 11.75/11x2.5” combo on my Challenger for about 70k miles, and for a couple thousand miles on my Duster. I also ran both cars with the stock 73+ disks and 10x2.5” drums.

The Challenger was also a power brake car, but I’ve since converted it to a manual, 15/16” master cylinder. The power brakes don’t improve braking, they just make the pedal easier to push. I’ve never liked the vague pedal feel that comes with the 70’s style Mopar power brakes. The 15/16” manual master cylinder provides much better brake feel, and the pedal effort with that size master cylinder isn’t bad at all.

It’s absolutely worth doing the upgrade, and I wouldn’t waste my money rebuilding a set of the 10” brakes (disks or drums) if you have the 11” brakes already.