I believe I got P/N 99175, which fits a 1.75" shaft and is .875" wide overall. But my local NAPA store (Gardena,CA) had 99174 listed in their catalog, which is the next size narrower.
However, the NAPA in Torrance, CA (closer to where I work) only carried a substitute line of sleeves (FelPro I think), which didn't cover the TR3 (even when looking up by size). I guess not all NAPA stores are created equal.