brown280z Posted November 19, 2017 Share Posted November 19, 2017 I installed an OBX locker in my R200 a few years ago and never really liked the spline engagement to the output shaft stubs. The shafts don’t appear to be worn (fit great in the OE carrier) but they have a fair amount of slop with the OBX unit (both rotation and side play). I was thinking this may be a good time to ditch the OBX but I have actually been pretty happy with the performance other than the clunky sounds when not loading the diff. How much slop are others seeing with their OBX? How bad of an idea would it be to use some Loctite 660 to fill the gap? Mike ’77 280Z - LS1/T56 Quote Link to comment Share on other sites More sharing options...
brown280z Posted November 26, 2017 Author Share Posted November 26, 2017 I am still debating how to handle this one. I attempted to contact OBX but have yet to receive a reply. In regards to my inner stubs, they fit great in the open carrier (no slop) but maybe they are worn. The 29 spline shaft has a outer diameter of 1.177”. Does anyone know what they should be? Thanks, Mike Quote Link to comment Share on other sites More sharing options...
jthom5147 Posted November 27, 2017 Share Posted November 27, 2017 Not sure what they “should be”, but here are some measurements from a 280z r200 and a z32 vlsd NA. Quote Link to comment Share on other sites More sharing options...
brown280z Posted November 28, 2017 Author Share Posted November 28, 2017 Thanks jthom5147! It looks like your measurements are very close to mine (+/-.003”). Assuming our splines are normal, that would mean my OBX spline is to blame ... I’ll try to contact OBX again but I am doubting I’ll get a response. Any ideas to fix? Quote Link to comment Share on other sites More sharing options...
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