Your clunk could be any combination of:
1. Bad U-joints
2. Loose U-bolts
3. Worn leaf spring pads or bushes
4. Worn wire wheels or hub splines
5. Worn differential
6. "Junk in the trunk" :)
Your binding at the rear (how do you know it's the rear?) is more likely
brake problems. How old are your brake hoses? They can deteriorate
inside and become a sort of one-way valve that holds pressure.
Word on the street is Geoffrey Gallaway said:
> Recently I've noticed a *Clunk* coming from the back end of my 69 MG BGT
> when I accelerate. There is a definite slack on acceleration and braking.
> I've also noticed that something is binding in the rear end. When I come to
> a stop at a noticable gradient I can let my foot of the brake and the car
> won't move. If I put it in gear and let off the clutch a little I can hear
> that same *Clunk* and the car will release and roll forward. Is this related
> to the drive shaft?
> I'm going to climb under it this weekend and see if I can rotate the drive
> shaft with my hand. I'm guessing that either the drive shafts' U-joints are
> bad or I have a problem with the differential. Opinions?
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