I have built a 29 Ford model A coupe and I have 58 Buick drums with 48 Ford backing plates and hardware on the front. The rear brakes are a stock style drums from a 76 maverick. The MC and pedal is the one sold by Speedway motors for a model A/T set up/ for under the floor, it comes with a MC from a 65 mustang I believe. 6:1 pedal ratio, I think. I have the proper residual valves inline for both the front and rear. The problem is that the brakes are harder than a rock and don't provide much for stopping power, anyone have any thoughts on why this is?