dhayes5 Posted November 7, 2010 Share Posted November 7, 2010 I was getting ready to swap a 3.90 r200 rear end into my late '72 240z (Also installing a "ZXb" 5-speed 0.745 5th gear) and ran into a snag. While I got the 280z side flange shafts that work with the 240 half shafts, I did not realize that my r200 had the wrong pinion drive flange. My r200 has the rectangular flange with the 2" pilot and 2.94" bolt circle. The one I need is the 2.2" pilot with the 2.75" bolt circle. Question is, if I can find the correct companion flange, how hard is it to change? I ask this because I am concerned about the thrust washers behind this flange and want to know if there is any special requirement to make sure the pinion depth is not disturbed other than just putting back the thrust washers in the same order they came out. I hope this makes sense. I know differential assembly is tricky and I just want to make sure I don't make a mistake. Also, Anyone know where I can find the correct companion flange? Quote Link to comment Share on other sites More sharing options...
GoAuburn Posted November 17, 2010 Share Posted November 17, 2010 Hey, check with the guys at the Zbarn (www.zbarn.com) they sell a complete kit, or individual parts to do what you are attempting. Rob Quote Link to comment Share on other sites More sharing options...
GoAuburn Posted November 17, 2010 Share Posted November 17, 2010 Hey, check with the guys at the Zbarn (http://www.zbarn.com/70to78/used_steering.htm) they sell a complete kit, or individual parts to do what you are attempting. Rob Quote Link to comment Share on other sites More sharing options...
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