Diseazd Posted August 27, 2008 Share #1 Posted August 27, 2008 When putting an R200 diff into an early Z, is there any clearance problems with the diff restraining strap? I had to "squeeze her in" when I converted my early 71 to the longer drive shaft and diff mount. Will I have the same problem with the diff strap when I change out the 180 to the 200? Link to comment Share on other sites More sharing options...
xray Posted August 27, 2008 Share #2 Posted August 27, 2008 IIRC, the 72-78 driveshaft are the same length, so the R200 should fit OK if you did the modifications relating to diff mount, mustache bar, rear control arm link etc. Do you have the correct halfshafts/flanges/stubs etc?http://forums.hybridz.org/showthread.php?t=114798www.modernmotorsports.comwww.zbarn.comShould have the info you need (if you didn't already have it. Sorry if it's redundant!) Link to comment Share on other sites More sharing options...
Diseazd Posted August 27, 2008 Author Share #3 Posted August 27, 2008 (edited) Steve......I put the longer DS, late diff mount and rear diff crossmember (hanger) so I could update to the R200 which I already own. The restraining strap is anchored at a different point on the early 71's and 70's than on your 72. It was a tight fit when I put the R180 back in with the new set up. I'm wondering if anyone has put the R200 into the early 70,71 Z's and if the restraining strap was a tight fit. You've brought up a good point though.....can I use my early half shafts (will they fit the R200 without mods)? Also.....did you see my post on the Richmond Show in October? If you come up for the show we can park the 2 lime Z's together!" Two Limes Don't Make a Right"........Sorry Ron I couldn't resist that one! Edited August 27, 2008 by Diseazd Link to comment Share on other sites More sharing options...
jmortensen Posted August 27, 2008 Share #4 Posted August 27, 2008 The strap will be too far forward if you move the diff back. My solution was to move the strap mounting bracket back one hole. In order to do this you need to grind a little lip off of both sides of the trans tunnel, and what was left was enough to prevent the strap from rotating on my car. I had the front hole in the strap bracket lined up with the rear hole on the chassis and ran my car like that for years, through autoxes and track days, never had a problem. You could also make a new bracket that spanned the front hole, middle, and the rear hole if you wanted everything tied together. WW2Winger and I were discussing that possibility via PM.I think the best course of action though would be to get rid of the strap entirely. One easily fabricated solution is to do a clamshell type of diff mount as shown here:http://album.hybridz.org/showphoto.php?photo=2501 Link to comment Share on other sites More sharing options...
WW2Winger Posted August 27, 2008 Share #5 Posted August 27, 2008 Made my brackets last night and I think they will be fine. This moves the strap 30mm rearwards which puts it in the proper place over the differential. Simply a plate with three holes. The first hole mounts to the existing forward hole on the chassis. The middle hole accepts a bolt through the front strap mount bracket hole and then into the rear chassis hole. And the third hole accepts a bolt going through the rear strap bracket. This gives the strap bracket two holes to mount to and moves the bracket back 30mm. Thanks again to John Mortensen for his consultation. It was actually his idea to move the bracket back, he just put one bolt in it, I simply added another bolt. Link to comment Share on other sites More sharing options...
Diseazd Posted August 27, 2008 Author Share #6 Posted August 27, 2008 Thanks Jon,Steve and Winger.......once again you've helped me do it right! Guy Link to comment Share on other sites More sharing options...
Duffman Posted February 11, 2009 Share #7 Posted February 11, 2009 So, if I have the 83 280zx 5 speed and matching R200 diff installed, using a later (72 to 78) diff strap and bracket will still not align correctly with the mounting holes for the diff strap bracket? I understand the 70 to 71 bracket will be too far forward, but was hoping the later version would be more offset and allow the strap to reach over the diff, is that incorrect?Assuming I cannot use the early or later bracket, I guess I will have to create an alternative, as is mentioned above, bummer!! Link to comment Share on other sites More sharing options...
Arne Posted February 11, 2009 Share #8 Posted February 11, 2009 I think the best course of action though would be to get rid of the strap entirely. One easily fabricated solution is to do a clamshell type of diff mount as shown here:http://album.hybridz.org/showphoto.php?photo=2501I really like this option. This is the way I'd go. Link to comment Share on other sites More sharing options...
Duffman Posted February 11, 2009 Share #9 Posted February 11, 2009 Yes, Arne, that looks like the easiest solution to the problem. I am going to see if I can get this piece fabricated, probably cheaper than the $100 for the strap, bracket, etc, from Nissan! Link to comment Share on other sites More sharing options...
WW2Winger Posted February 12, 2009 Share #10 Posted February 12, 2009 I may be wrong here, but I think the later style bracket will not bolt up to the early style chassis. That's why I had to go to plan "B" Link to comment Share on other sites More sharing options...
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