Master cylinder should be different, There is also a bracket that the booster uses to mount to the firewall. There is a pivot system that the brake rod uses to go to the power booster. Also the rod that attaches to your brake peddle must be changed.
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'69 CST Short fleetside
Lowered, 400 small block, 700R4, 4 wheel disc brakes, front & rear sway bars
See my truck at:
http://www.geocities.com/low69cst/
Student at the University of Kentucky.
Feel free to message me on AOL, SN- SS95ZQ8
My Dad's projects:
72 Short Fleet 4x4 Chyenne Super
72 Long Fleet 4x4 Chyenne Super
Both 350 autos restored original