help ASAP with brake booster

I have an '87 4 cylinder YJ. Going off of recommendations I purchased a brake booster for a '95 6 cylinder. I purchased this: http://ift.tt/1KzU6fy

Trying to install, I noticed the push rod is a lot shorter in the new one compared to the old one. I've unscrewed the rod to extend it but that is not enough.
I know the master cylinder sits a bit inside of the booster. But with that the push rod is still maybe 3/8" into the master cylinder where as the old push rod was in by several inches.
You guys got any ideas?

Attached Images

	new booster.jpg (76.6 KB)
	old booster.jpg (98.2 KB)
	side by side booster.jpg (105.2 KB)
	master cylinder.jpg (118.2 KB)

help ASAP with brake booster