Quote Originally Posted by Kenny
I may have had the same feeling when letting off the brake after a stop. A sort of feeling of unsprung energy...

Once I greased the zirk on the drive axle yoke, the feeling went away for good. I just keep on top of that yoke zirk with grease once every 4-5 months. Make sure the grease starts to ooze out of the yoke.

You can see the yoke at the front end of the driveshaft (far left) in this image. The zirk is actually seen pointing at you just above the cross member just infront of the yoke (the part of the shaft that slides in and out.. )



and while you're there, grease the u-joints too....

Good Luck.
Unsprung energy is a perfect description and i also thought that part of the drive line was the problem and i keep the zirks on that and the joints greesed regularly i duno.