The space was exactly 1 & 1/16 tall before my Sector111 shifter mod, and afterward it was about a 64th under an inch. I went to Lowes and purchased a metal cylinder, 5 super-hard bushings that slid snugly inside, a longer bolt, a flat swasher and a lock washer. I ended up not needing the lock washer, I just used some blue loctite. In the end, you can probably do it a million ways and it'll work. I certainly noticed a difference
.
The parts:
The finished product:
The parts:

The finished product:
