Tranny up and died on me!

[75BeauJames]

I was cruising in the Beau James last night, doing about 50 just running up to the store. All of the sudden, the engine rev'd high and it acted like it was in neutral. I can shift all the way from reverse down to first without catching a single gear. It hasn't been acting up and has been shifting smoothly for the last 2 months that I've had it.

So my question is, with TH300's being a dime a dozen, should I bother taking it to a shop to be diagnosed and repaired, or would I be better off to just yank the dead unit out and put in a replacement? I found a TH350 this morning with 80k miles on it for $50, including torque converter... It's my daily driver, so I just need to get it back on the road ASAP for minimal cost. Figures, I ordered my rims and tires on Friday... Don't wanna cancel the order if I don't have to!

Scott