I believe that is what he is talking about. I have done this on a master for the clutch when I went from an 84 to 94. It was not screw in though it was held in place with a retaining clip. Moving to tech.
Rather than put a different push rod on you can put a spacer between the firewall and the booster. I thought 95+ had these anyway. It could be just 95-97 IIRC but I am not positive. So you can either grab one of those in a junk yard or make a spacer or use washers.