zTrollop Posted March 5, 2021 Share Posted March 5, 2021 Yo, I have an R200LN on my 280z im swapping a vq37 into it. I haven't opened it up to see what the ratio is, or the condition. Either way I would like to rebuild it, or swap it out all together. what rebuild kit would you recommend and if you can attach a link. I've never rebuilt a diff so any tech sheets/link into rebuilding a R200 floating around? Quote Link to comment Share on other sites More sharing options...
NewZed Posted March 5, 2021 Share Posted March 5, 2021 I've never seen a kit. This guy, below, has parts you might need. They're pretty durable and don't often even need rebuilding. The Factory Service Manual has a section on rebuilding the diff. https://zcardepot.com/search?q=differential&type=product Quote Link to comment Share on other sites More sharing options...
NewZed Posted March 5, 2021 Share Posted March 5, 2021 Actually, he does have a kit. I didn't go far enough down the page. https://zcardepot.com/products/r200-differential-rebuild-bearing-seal-kit-280z-280zx-300zx?_pos=61&_sid=f9b96a786&_ss=r Quote Link to comment Share on other sites More sharing options...
jonbill Posted March 5, 2021 Share Posted March 5, 2021 Setting up an R200 is quite hard, especially the pinion. Rule of thumb, don't take the pinion out unless you really have to. Quote Link to comment Share on other sites More sharing options...
AydinZ71 Posted March 6, 2021 Share Posted March 6, 2021 With the VQ37, you will be running what? Near 300ft-lbs of torque? You should make getting an LSD a priority. With that much torque you will just be spinning one wheel. Even with an LSD, keeping traction will be a struggle. You can swap the open diff spider gear with an LSD assembly from MFactory, Kaaz, quaif etc. I believe top-of-the-line is adjustable clutch OS Giken, but I think they are near $2,000. if you want to swap it out entirely and go with something bulletproof, look into “invincible extremes”. He sells parts for swapping in a mustang GT diff, axles, and hubs. Quote Link to comment Share on other sites More sharing options...
AydinZ71 Posted March 6, 2021 Share Posted March 6, 2021 (edited) 16 hours ago, NewZed said: I've never seen a kit. This guy, below, has parts you might need. They're pretty durable and don't often even need rebuilding. The Factory Service Manual has a section on rebuilding the diff. https://zcardepot.com/search?q=differential&type=product agreed. If you keep the diff from going dry, I have not yet experienced ring-pinion combo wear out just from normal use. I have crushed spider gears by getting on/off the gas too harshly with a worn-out diff mount. I ran dry once as a silly kid who forgot to fill the case. Stank to all hell, and got so hot the paint on the diff burned off. It was toast. Edited March 6, 2021 by AydinZ71 Quote Link to comment Share on other sites More sharing options...
Sanchez Posted March 6, 2021 Share Posted March 6, 2021 I’m gonna 2nd what @AydinZ71 said above about getting a LSD. The R200 itself can handle the VQ torque (the 370Z/G37 have a more modern version of the R200). It’s your Half-shafts that you need to be worried about. Techno Toy Tuning has great, but pricey, rear suspension setups that use a R200/230 or a Ford 8.8 complete with CV axles. The kit by @Invincibleextremes changes the entire rear suspension to use regularly available of the shelf parts from mustangs and neons with a Ford 8.8. And Apex Engineered has a whole subframe that allows for R200/230 and Ford 8.8 (I’m going with Apex, and they are also finishing up a front cross member with VQ mounts). All these option convert to CV axles with backing plated hubs that will keep the tire on the vehicle should one snap. 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.