larger discs

[gafletch]

   If I go to larger manual front discs on the '70 Cuda, what setup is most reasonable?

[brads70]

Using stock parts or aftermarket?
If stock parts are what you want this link is helpful
http://www.moparaction.com/Tech/archive/disc-main.html

[67vertman]

If you go any bigger, then what Bard showed you, you will need to go to larger rims.

I did the swap with stock components, they work great.

[cudazappa]

Cliff notes version: (assuming you have stock 70-72 disc setup now)
1) 77-81 B/R body Rotor (Cordoba, Magnum, St. Regis) & rear wheel bearing
2) Dr. Diff bearing spacer http://www.doctordiff.com/
3) 77-78 Caliper adapter (pin type)

Just hang up your calipers, remove your rotor and caliper adapter.  Install new caliper adapter.  Slide the bearing spacer on. Slide new rotor on.  Re-install your caliper.

One caveat, the rotors will require a 15" wheel!

I run this setup on my 71.  Plenty of brake for the car.

[HP_Cuda]

Dr Diff (cass) has some nice setups - check out his website.

B