1992 Tbird Transmission Problems

[92BIRD]

I have a 1992 Thunderbird LX with a 5.0, it's an automatic...
I paid $700 for the car, so it's not like I wasn't expecting problems, when im going about 60 mph with the car in fourth gear, it WILL NOT catch, I can rev the beast to my hearts desire an the car just wont catch. This does not happen in any other gear, just in fourth (im fairly sure that its a four speed automatic transmission, if im wrong please dont be cruel about it, ive only owned the car for two weeks and im fixing things as I go. Anyways, my diagnosis is the valve bodies on the transmission are dirty, are there any other possibilities?
Also, ive seen pictures of thunderbirds with hoods that have a slight scoop built into them, are these stock on the super coupes or are they aftermarket... and if so, where do i find them?

[007_SuperCoupe]

Your OD band is gone. This is very common in the AOD trans. What it means...you guessed it, a rebuild or purcahasing a remanufactured one or even a used one. If you go used, I HIGHLY recommend you find one from a SC or V8...the n/a 3.8 just won't last for you at all. Also, see this thread as well...I posted some info on it pertaining to the AOD tranny...

Ah...never mind, I see it's your thread! Hehe...

As for the hood, they are not stock, but aftermarket. There's a couple different varieties to choose from, Mach 1 style, Cobra R style and Cobra R with hood scoops...also some cowl induction hoods. As far as selection you can get most of these hoods from Bill Evanoff at Super Coupe Performance. That's where I got mine.