skerry Posted February 15, 2017 Share Posted February 15, 2017 (edited) Sold Edited July 30, 2018 by skerry Sold Quote Link to comment Share on other sites More sharing options...
seattlejester Posted February 16, 2017 Share Posted February 16, 2017 Assumption is that this is a 240z so it came with the R180. OBX is not that complicated. Order the kit, take it apart, inspect, order the shim kit from this forum, then reinstall. Your comparing an LSD to a differential to suspension. My assumption is also that you meant the Ford 8.8 diff with the IRS axles. If it is a 240z and you are pumping a healthy SBC worth of power at it, the stub axles seem to be a glaring weak point along with the halfshafts. Going R200 isn't going to solve either If you plan on keeping it, I would spend the effort to go with the 8.8 that way you know the rear end is going to handle whatever you throw at it. Granted not sure if you want to sink that much money into a flood recovery vehicle. Other choice is the TTT shortnose R200/R230 kit. That would come with new axles and such, but it does cost quite the pretty penny. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted February 16, 2017 Share Posted February 16, 2017 R200. Quote Link to comment Share on other sites More sharing options...
McGruber21 Posted February 16, 2017 Share Posted February 16, 2017 It wouldn't hurt to do some "while its apart" maintenance when installing an r200. ex, All of the bushings, polyurethane upgrade, you'll need a new diff mounts and diff strap, and thoroughly check your half shafts and suspension components. I replaced my diff about a year ago, and the polyurethane bushings really go along way for the money, especially when it came to the mustache bar bushings. Quote Link to comment Share on other sites More sharing options...
G-Tech Posted February 16, 2017 Share Posted February 16, 2017 if you dont want to get in too deep and your car is an automatic, i would agree a R200 will do you just fine. if its a stick shift you"ll want to step it up a lil from there and mayb address the half shafts and stub axles. Quote Link to comment Share on other sites More sharing options...
skerry Posted February 16, 2017 Author Share Posted February 16, 2017 Thanks guys, lots of great advice. I found a local 1979 280zx that I can pick up for cheap. I'm thinking I may get that so I will have all of the parts I need for the r200 conversion. I like the idea of upgrading the bushings as well. The car has a 700r4 so it's looking like the R200 makes the most sense at this point. I've had the Ron Tyler diff mount from Technovisions laying around for a while so the r200 still allows me to use that. Seems like it's all coming into place. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted February 17, 2017 Share Posted February 17, 2017 The 280ZX will have a diff, but none of the other parts you need. You need a 280Z mustache bar. If you have a 70 or early 71, you also need the curved piece that goes around the back of the diff. A manual ZX, non-turbo should have 3.90 gears. Quote Link to comment Share on other sites More sharing options...
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