Here's the deal. My 37 Coupe has a 10 bolt Chevy under it. Lately its been starting to make some noise, and I haven't had a chance to look at it yet. Once I do I will report what I find, but it the meantime thought it might be fun to see what folks think it might be. OK, so it started out with a bit of a whine, or really more of a Whir under deceleration. It progressed (regressed?) to making the same noise during Left hand turns (but not right). It is now a bit noisy in a straight line as well, while still making the other sounds, but still not on right hand turns. It also has a bit of a vibration at speed that is getting progressively worse - I suspect driveline angle here as the clown that put the rear end in (before I got the car) had it off center with the perches the wrong width (causing the spring to bind a bit once it was forced onto the pins, I fixed that by slotting the hols in the perches slightly side to side, but didn't think to check the angles at that time as I hadn't noticed the vibration). I hope to get it on the lift soon, but am curious what some of you folks think it might be.