Hurst shifters

[m22mike]

The long rod, 3-4 shift is fine thread. BB and SB.

I went back to my high res photos... and what Mike asserts is true on my shifter rods..  ie.  The long 3-4 rod has fine threads, the others are coarse thread. And note on OE rods there is only a single jam nut.

But this does beg the question:  WHY???

My guess is that because the 3-4 adjustable rod end is the only one that is internally threaded, it was done this way to allow for a finer adjustment when one revolution was made.
Mike

[bcmiller]

Mike - seems like a good reason to me.

Gary - the rod ends look correct for original GM.

[69Z28-RS]

Mike,

That makes sense to me also...  I noticed the different mechanism, but hadn't thought about that approach meaning that adjustments would have to be made in complete rotations..

Good stuff!   Sure helps to have some experts to answer our questions..