[70STOVEBOLT]

Originally Posted by LockDoc

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I have changed 3 trucks over from manual to power brakes and never had to change wheel cylinders or re-drill a pedal arm. I have always used stock boosters so there could be a difference in the 8.5 inch dual booster. I have also always used the port in the rear of the intake manifold instead of the back of the carb. On my White '67 SWB I even used the manual master cylinder with no problems. I didn't even unhook the lines when I installed the booster, just unbolted it from the firewall, pulled it back, and bolted it to the booster after it was installed. I know I changed the master cyl to booster rod.

LockDoc

X2, I installed the 11" booster. The only thing I did not reuse was the master cylinder pushrod, I used the adjustable one that came with the used booster that I bought. If your brake shoes were fairly new and the rest of the system was in good shape, it would be normal to only have a small amount of travel. The last time I replaced the brake shoes and adjusted them I only had about an inch of travel.