1996 Mustang hydroboost pushrod too long

I've got a hydroboost out of a 1996 Mustang. I know the fittings on it are SAE instead of metric, but I'm wondering if there are other differences, too. The master is also for a 1996 Mustang GT, so they should match.

It appears my pushrod is too long and is making the brakes drag. I won't know until I can get a new wrench to pull the master if the rod is adjustable. My pedal returns all the way and isn't being obstructed by anything, so I'm confident that isn't the issue. If I loosen the nuts holding the master to the booster, the brakes immediately free up and stay free until I apply the brakes again.

I was wondering if anybody is running shims between the master and booster because I can't find any reference to that method of taking care of the problem.

There was a thread I read that talks about the return from the HB being crimped or restricted causing brakes to drag. In fact it recommended that if you use a T on the return from the HB and steering rack that you connect the straight through portion of the T between the HB and the tank and the steering rack to the 90 degree of the T. Might be an easy fix to try.

Jack

The return from the booster goes to a separate port on the reservoir, so that shouldn't be it. I actually picked up that pump because it was used on a hydroboost car so it had 2 returns and the correct pressure valve.

I was able to get the master off the booster the other night and there was about 0.070" preload on the master. I made a shim and now the brakes work great. I don't get why there was any preload since the booster and master are for the same car, but it works now and that's what matters to me.