GOt my jeep a bit wet

Well i went mudding a couple of days ago and got my jeep a bit wet. Its a 2001 xj with 6" lift with 35" baja claws. I got water in the transmission and messed it up cuz i kept on wheeling it for 2hrs. The good thing i had bought a wrecked 01 4x4 xj for 500. for spare parts. here is a link to the vid.
http://www.youtube.com/watch?v=Hm0-q67OxnI

what's the tranny doing?

its making a whinning noise and its stuck in 3rd gear or something

do a tranny flush, or change the fluid twice. a buddy of mine has done that several times now. flat towing 5 miles.. fun fun fun.

it's worth a shot. a lot easier than doing a full transmission swap. you may also have some bad sensors, depends on what other problems, he usually fried his oxygen sensors, too.