Hurst shifters - what are the differences?

I broke the threaded end off my reverse rod trying to adjust swivel. It was rusted so bad that I twisted it off. I bought a reproduction one through Anderson automotive. The unit came back shorter than the original but only the threading on the end. The levers were shaped exactly the same except for the threaded forward end was shorter by about 7/16-1/2". I can adjust the swivel to work but the very front of the swivel's female theads aren't in contact with the lever(about 2 threads). I got another shifter with rods as part of another deal later and the reverse rod was longer like my original.

So, I have two but I bet my shorter one is like yours.