Originally Posted by MountainGoat
My 80 had a clunk which behaved exactly like you describe. Turned out to be worn splines on the rear driveshaft, causing enough rotational play to clunk on change of direction under load. It was diagnosed and repaired by Bill at Bill's Englewood Driveshaft with a driveshaft rebuild. Hasn't repeated since.
Yup that's the one. Nak you could remove the rear shaft, lock your center and see what happens. Or swap in a donor shaft.
That's what she said.
-Justin Morgan, Toyota Technician (T-TEN)
"-1988 Red Hilux Standard frame, X-tra cab, locked F&R, 5.29's, 35" tires and a SAS. In Moab
"-1988, 2001 3.4L, Supercharged, 2.1" URD pulley, 2 1/2" Magnaflow exhaust, TO DO: SAS, Duals.
"Did you know the IFS was designed by Hitler himself to make the life of 4WD owners tough? Yeah, it's true, he saw a vision of the Devil and he told him to do it." -DaveInDenver