On the T5 tranny, it's just one bolt that holds the speedo cable gear assy. in the tailstock. Out in 30 sec. the 50 cent plastic gear is held on by a spring clip and simply snaps on the end of the assy. Total time to replace is about 5 min. if you take your time...
Mark, are there any colored gears or anything that distinguishes the speedo assemblys from one another?