wickiewicked240z Posted December 13, 2012 Share Posted December 13, 2012 I have a 240z R180 mustache bar its flat and a R200 mustache bar with the cross-member. I installed 2005 STI R180 now I try using the R180 mustache bar but there's a 1/2 gap in the rear were the 2 mounting bolts are at so the back of the diff cover is won't touch the bar. Now if I flip the bar its to far forward and the diff won't fit. What I ended up doing was using the R200 mustache bar and putting rubber bushings on the mouthing bolts that are 1/2 thick in between the Diff cover and the mustache bar. Quote Link to comment Share on other sites More sharing options...
beermanpete Posted December 14, 2012 Share Posted December 14, 2012 We have a '73 and installed the STi R180 using the stock mustache bar and front differential mount. Quote Link to comment Share on other sites More sharing options...
spotmy4 Posted December 14, 2012 Share Posted December 14, 2012 I have a 72 and use the stock mustache bar with R/t front diff mount. Quote Link to comment Share on other sites More sharing options...
NewZed Posted December 14, 2012 Share Posted December 14, 2012 (edited) Rubber bushings between the bar and the cover are a bad idea, I believe. The diff has a lot of leverage on those studs. Not clear how that could work. Didn't the early 70 240Z's use a different front mount and bar? The whole short driveshaft thing. Sounds like you have an early 240Z front mount which has the diff mounted forward. Just a guess, I never got in to all of the details of the early 240Z forward-mounted diff. Edited December 14, 2012 by NewZed Quote Link to comment Share on other sites More sharing options...
wickiewicked240z Posted December 14, 2012 Author Share Posted December 14, 2012 the front mount is from a R200 cause that's what I was running before the swap. My 240z is a 71, didn't they switched mustache bars with the bends in the middle in the late 240z? Does anyone have pictures of their sti lsd with the R180 mustache bar? There is no way that when I screw in the nuts on the rear cover that the R180 mustache bar is going to bend that much to touch the rear diff cover. Quote Link to comment Share on other sites More sharing options...
Leon Posted December 14, 2012 Share Posted December 14, 2012 A '71 can have the early or late diff position. I don't remember what month that changed but probably around mid-year (6/71?). I bet you have a simpler issue: flip your front diff mount. Quote Link to comment Share on other sites More sharing options...
wickiewicked240z Posted December 14, 2012 Author Share Posted December 14, 2012 That's what I was thinking to flip it. Right now I have the wide part facing front of car and the narrow side facing the rear. Flipping the rubber mount is probably move the diff forward giving me that space I need to bolt the R180 mustache bar. Quote Link to comment Share on other sites More sharing options...
ozzzzz Posted December 14, 2012 Share Posted December 14, 2012 (edited) This is an early model 74 260. Its the same mustache bar as my 73 240 was.Click on this link> http://s1096.beta.photobucket.com/user/ozzzzz1/library/260z%20rear%20diff%20from%20sti Edited December 14, 2012 by ozzzzz Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.