Hey Tiny
Just put in the booster a few weeks ago, still working on some of the lines but almost done.
If I remember right I had to drill, just two 3/8 holes for the bracket that the booster is mounted on that attaches to the frame.
Also had to move the parking brake cable pulley back somewhat. Thats required to clear the booster, think it was about 6 or 8 inches, that required a few more holes. That's on my 55, 3200. Yours is probably the same.
Other than that it was a pretty easy install. If your like me you'll spend more time reinstalling and rerouting the brake lines.
Don't have any pictures for you right now, will try and get some for you tomorrow, unless someone beats me to it.
