4 wheel disc help?

68cudahemi said

68 barracuda with factory drum all around to 4 wheel disc brakes.Factory were manual and i want to keep manual brakes.Which m/c should i get and should i go with a adjustable proportioning valve? Also do i need to change line diameter for more fluid flow?If so what size?

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Why not just go disc front / drum rear?

Unless you are autocrossing/Pro Soloing this car, the difference between drums vs. disc in the rear is hardly noticeable. The front disc do about 80 percent or more of all the braking based on the brake bias.

If you wish to pursue the rear disc conversion, check out the www.moparts.org message boards, go there and look for Doctor Diff. He has complete conversion packages available, including rear disc conversions (I believe these may be Ford Explorer rear discs adapted to the 8 3/4 rear).

Check out this thread for Doctor Diff info.
http://board.moparts.org/ubbthreads...96&Words=+cnxt&topic=&Search=true#Post4978372