Loud clunk when shifting from P to R on A/T 4speed

[fixkick]

sure.
keep in mind, noise diagnosis is no easy, you don't have a electronic stethoscope. so cant drive and listen, and find 99% off all noises,
in the case of U-joints, we cant clamp there, so , if all the other parts are noise free, then that leaves just the joints.
but we man handle them, do you under stand that? use a 2x4 and the lever action (Archimedes, ways,. physics...?)
noise can telegraph,
means noise can be far way and move through metal and land elsewhere and that elsewhere, makes noise. this fact can make diagnosis very hard.

the microphones can be clamped on to any thing, (use your wild imagination here, (not drive shafts , sure)
my noise page covers that

http://www.fixkick.com/NOISE.html

read that yet? see my $31 steelman electronic ear?
worth every penny. in finding the tough problems.
eg'
ah, it is the axle , its not the left, its not the center, its omg on the right side, easy as eating apple pie.

the main rear drive shaft on your car is RINGING like a bell... this is very TELLING.....