For the speedo, take the cable back off of the t-case and attach it to a drill. Run the drill in reverse and see if the speedo moves.

If it moves, you need to replace the speedo adapter gears (about $30 at the dealer). 1 bolt holds the adapter, and then it all slides right out.

"A young man who does not have what it takes to perform military service is not likely to have what it takes to make a living." - John F. Kennedy

Proud owner of an 88 Montero (with a blown engine).