On my 94, I hit about 85k and my tranny went out. Was not alot of fun changing it out. The swap over to the 5 speed is going to be a serious headache. SuperCoupe has a good point about the rebuilds, however, here in California, the Ford dealerships are now selling rebuilds as well. A rebuild from the dealership will run you about 50% of the cost of a new one, plus carries a 1 year warranty. If, it were up to me, I would get the rebuild and with the money I saved from the tranny, invest it in some other engine, exhaust, or other performance mods. Good luck to you either way....