It's correct part number is RS99270 (missing a 9) and it's used on Ford truck (Expedition, 1/2, 3/4, 1ton) fronts
Shaft 2-5/8"x1/2-13" and cross pin 2-1/2"x5/16"
13-3/8" and 20-3/4" (compressed/extended) with 7-3/8" travel
It's been discontinued. I believe it's closest replacement is RS999272