shadesh Posted November 3, 2009 Share Posted November 3, 2009 So I bought a 3.90 diff from a 280ZX for my 1975 280Z. The question is which Differential Mount do I use. . the one from 1975 or the one from the 280ZX? I noticed that Motorsport has one for 1972-78 and 79-83. I hear a clunking sound when I let go off the throttle and I think the Diff mount is shot. Any feedback would be appreciated. Thanks.! Quote Link to comment Share on other sites More sharing options...
shadesh Posted November 3, 2009 Author Share Posted November 3, 2009 Anyone? Quote Link to comment Share on other sites More sharing options...
Roostmonkey Posted November 3, 2009 Share Posted November 3, 2009 You will need to use the 75 mount. Or wait till I make more RT mounts Quote Link to comment Share on other sites More sharing options...
shadesh Posted November 3, 2009 Author Share Posted November 3, 2009 You will need to use the 75 mount. Or wait till I make more RT mounts Thank You. What is RT for? sorry. Whats different about your mounts? Quote Link to comment Share on other sites More sharing options...
h4nsm0l3m4n Posted November 3, 2009 Share Posted November 3, 2009 The RT mount design braces and holds the diff from the top so that diff clunk will be eliminated. I run one of his in my car with great results as do many others. Look for Roostmonkey's posts/threads in the Vendor forums on the subject. Quote Link to comment Share on other sites More sharing options...
shadesh Posted November 4, 2009 Author Share Posted November 4, 2009 Thanks! for the info. I appreciate it Quote Link to comment Share on other sites More sharing options...
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