Help! VERY annoying squeak/squeal....

[Russ72C10]

I know, it's a '72 and it's going to have "character" - but this is already getting on my nerves. Here's the scenario. It's a squeaking or squeeling sound that slowly increases in frequency as the vehicle speed increases. But only in a forward gear. In reverse it does not make the noise. It does not make the noise while in neutral, at any speed or RPM. In gear, when I let off of the break, it slowly goes... squeek.........squeek...... squeek... and as I gain speed, so does it - and it gets higher pitched. Squeek.. squeek squeek squeek. ANY IDEAS? (I know, i'm terrible at explaining these things. I might just make a digital video and upload it someplace!)

Overview....

-Squeeks only in a forward gear.
-Increases in frequency with speed.
-Does not squeek while in neutral at any speed.
-Does not squeek at all in reverse.
-While cruising at 30, it squeeks at a predictable rate. But if I give it gas to raise RPM, the squeek also increases....

Does this description sound at all familiar to anyone? At all? The "squeek" is similar to a rustry spring that's being compressed rapidly. Only higher in pitch.


HELP!?!? It's driving me insane!!