If it sounds like a double breasted zoot, call your tailor.
I have an '83 Ford F-150 4 Wheel Drive Pick-up. The rear "chirps" when the Clutch engages. The sound seems to be coming from around the rear universal joint. Also, the truck shakes at 40-50 MPH, then settles down. What's wrong?
RAY: Does the chirp sound more like a yellow bellied thrush or a double breasted zoot? If it sounds like a thrush, your universal joint is no longer jointing universally--that is it's seized and won't flex in one direction. This would cause both the noise and the vibration.
Get it fixed before the drive shaft falls out on the road and gives you a steel enema.
TOM: If it sounds like a double breasted zoot, call your tailor. Those went out of style years ago.