ok, my 87 gt 5speed just started making a really horrible noise. when you take off it makes a ping, ping, ping noise from the rear. i just tightened the driveshaft to pinion yoke 2 days ago b/c the bolts had came loose, and it was doing the same thing. now its doing it again, but the bolts are still tight(red locktight) the u joints dont have any play that i can tell. also it does it alot worse if i lock the wheel either way, and take off. the slip yoke to tranny has alot of play, i guess thats the tailshaft bearing, right. but the noise is definetly coming from all the way in the rear. if you do it turning left the left makes noise, and vice versa. anybody have any ideas. i cant reproduce the noise with the car jacked up.