krodgers Posted July 22, 2007 Share Posted July 22, 2007 Hi everybody. I have 76 Datsun 280Z 2+2 with a 4 speed manuel with an R200 diff. When I let out on the clutch i hear a clunking noise, but it only makes the noise once. It sounds like there is a lot of play in the driveline somewhere, but there isn't when i check it by hand. The diff was rebuilt 6 months ago, the halfshafts have brand new u-joints installed, and just put in a brand new driveshaft. I have no idea what else could be the problem. A friend said that it could be the throw-out bearing, but I don't know if it would make that noise if it was going out. Thanks, Kevin Rodgers Quote Link to comment Share on other sites More sharing options...
lbhsbZ Posted July 23, 2007 Share Posted July 23, 2007 Front diff mount broken? Quote Link to comment Share on other sites More sharing options...
COZY Z COLE Posted July 23, 2007 Share Posted July 23, 2007 Front diff mount broken? Check that along with a worn bushing on it and the bolts on the mustache bar. LARRY Quote Link to comment Share on other sites More sharing options...
krodgers Posted July 23, 2007 Author Share Posted July 23, 2007 Check that along with a worn bushing on it and the bolts on the mustache bar. LARRY I replaced the front diff mount when I got the diff rebuilt. I also replaced all the bushings for the mustache bar Quote Link to comment Share on other sites More sharing options...
COZY Z COLE Posted July 23, 2007 Share Posted July 23, 2007 I replaced the front diff mount when I got the diff rebuilt. I also replaced all the bushings for the mustache bar Retighten every nut on every bolt in the back. You'd be surprised what a loose nut will cause as far as a clunking noise. LARRY Quote Link to comment Share on other sites More sharing options...
krodgers Posted July 23, 2007 Author Share Posted July 23, 2007 Retighten every nut on every bolt in the back. You'd be surprised what a loose nut will cause as far as a clunking noise. LARRY That's a good suggestion. If its something that simple, then i deserve a good smack to the head Quote Link to comment Share on other sites More sharing options...
lbhsbZ Posted July 23, 2007 Share Posted July 23, 2007 You didn't put an OBX LSD in it did you....if you did, look through my recent post in this forum. Quote Link to comment Share on other sites More sharing options...
krodgers Posted July 23, 2007 Author Share Posted July 23, 2007 Retighten every nut on every bolt in the back. You'd be surprised what a loose nut will cause as far as a clunking noise. LARRY Well I deserve a smack in the head. I got under the car today and the two bolts that attach the rear of the diff to the mustache bar were loose. I crawled under the car when I first started getting the noise, but I guess I didn't check those bolts. My self esteem has plummeted... thanks for the help guys. Kevin Rodgers Quote Link to comment Share on other sites More sharing options...
COmputoman Posted July 25, 2007 Share Posted July 25, 2007 Well I deserve a smack in the head. I got under the car today and the two bolts that attach the rear of the diff to the mustache bar were loose. I crawled under the car when I first started getting the noise, but I guess I didn't check those bolts. My self esteem has plummeted... thanks for the help guys. Kevin Rodgers I have this same Issue with my 280zx 2+2! the clunk. I shall check out the mustache mounting points soon. Quote Link to comment Share on other sites More sharing options...
Tommy Posted September 3, 2009 Share Posted September 3, 2009 Same Issue with a 240z (r200 diff). Love this site for the search engine. So much info. In slightly related news... I'm lucky enough to access a hoist for $8/hr. No more digging holes in the gravel or e-braking onto wooden blocks to fit the jack under Quote Link to comment Share on other sites More sharing options...
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