Tranny?!?!

Not sure exactly what is goin on and dont know too much about transmissions. I dont even know is that is what my problem is...

I was driving to work this morning on the highway, crusing at around 65-70. I go to accelerate a little to pass someone when my rpm's suddenly jump up to 4K! but the truck dident go anywhere. I let of and just let it coast. When I touched the gas again to see if it did it again, it did. Now whe I gave it some throttel the rpms would jump really high but it would only accelerate VERY minimaly. When I get off the highway and get to a stop sigh I was scared it wouldent move, but it did. It drove fine. But as soon as I got out of either 1st or 2nd it started doing it again. Any one have any ideas?

I think I will be able to make the drive home (about 20 miles).

What's the fluid look like?

checked the fluid, looks fine. Maybe a little low.

How low's "a little"? Doesn't take much in modern transmissions to make them act funny.

well, on the dip-stick it was well above half way between the 2 lines.

got my truck back from the tranny shop a few days ago. The main problems were the front planet along with the reaction shell. While they were in their they replaced some other stuff for good measure, the only thing I can rembere right now was the TQ conveter. So I guess I can say I got a 3/4 rebuilt tranny. just wanted to give an update as to what happened. Now im even more in the hole as before! sometime this week I gotta look at my rear and see whats wrong with that.

That sucks. I've seen more than a few of those reaction shells grenade too.