cyrus Posted November 12, 2005 Share Posted November 12, 2005 I have a R230 from a 300ZX TT 3.69 R230 from a Armada 2.94 The housing are similar. The rear covers interchange. The ring gear bolt number and spacing is identical. So I swapped the LSD Carrier to the Armada case and gears. The 300ZX uses puny bolts (12mm shaft, Amarda 13MM), so I reamed the holes in the carrier to .515". I installed the whole setup and found that................ The set up will work but I need shims of ~1.6mm on the left and ~3.54mm on the right, but nissan only sells 2.0 mm-2.5 mm. The shims are 99mm in dia. The only other issue is the right bearing only is in contact with 2/3 rds of the machined case. This leaves 1/3 of it to float in air. I am not sure if this is significant. I may just put the Carrie and gears into the 300ZX Case. Does anyone know if the front lash is set by shims or a crush sleeve? Quote Link to comment Share on other sites More sharing options...
Guest Phil1934 Posted November 12, 2005 Share Posted November 12, 2005 The set up will work but I need shims of ~1.6mm on the left and ~3.54mm on the right' date=' but nissan only sells 2.0 mm-2.5 mm. The shims are 99mm in dia.[/quote'] Thin them on a belt sander. Wear gloves. Quote Link to comment Share on other sites More sharing options...
MONGO510 Posted November 12, 2005 Share Posted November 12, 2005 Put the shim on the rt. side under the cone instead of the cup. This will force the brg. outward into the case Quote Link to comment Share on other sites More sharing options...
JMortensen Posted November 12, 2005 Share Posted November 12, 2005 Kinda tough to pull the carrier bearings to shim underneath them without a puller tool like the one pictured on this page: http://www.ringpinion.com/default.asp?pid=6&pageid=80. That tool costs a couple hundred bucks. A "cheater" method would be to buy new carrier bearings, pull your old ones and hog out the center with a die grinder so that you could slip them on by hand. Then you can test, pull the bearing back off and change the shims, retest, etc and when you figure out the exact shim needed then press the new bearing on. That's the way Dana diffs are commonly done. Also the shim that would fit underneath the cone would be a different size than the one that fits outside of the cup, so you'd still need to find appropriately sized shims. Cyrus, I still think you should grab a shim and a race and take it down to a gear shop and see if they can't match it up to some other diff. It's a shim, so it doesn't have to be the exact same size. If that is just out of the question you could probably get a machinist to make you a shim out of shim stock. Also, I didn't understand exactly what you meant by this statement but it doesn't sound good: "The only other issue is the right bearing only is in contact with 2/3 rds of the machined case. This leaves 1/3 of it to float in air. I am not sure if this is significant" Crush sleeves set the pinion bearing preload. Not sure what "front lash" is. Nissan doesn't use crush sleeves in the R180 or R200, so I would imagine preload is set with shims in the R230 as well. Pinion depth is the other thing to worry about. IIRC the pinion depth on the R200 is set by shimming under the bearing that sits on the pinion head. This might help you out. It's a set of generic "how to set up your diff" instructions: http://www.ringpinion.com/downloads/yukoninstman.pdf Quote Link to comment Share on other sites More sharing options...
Clifton Posted November 13, 2005 Share Posted November 13, 2005 Kinda tough to pull the carrier bearings to shim underneath them without a puller tool like the one pictured on this page: http://www.ringpinion.com/default.asp?pid=6&pageid=80[/url']. Are R230's different than R200's when seting up gears? On R200's you shim the race. You don't need to pull the carrier bearing off. Pinion bearings do need to be pulled but a cheap HF bearing puller and press get those off. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted November 13, 2005 Share Posted November 13, 2005 I was saying he would need that if he wanted to shim underneath the bearing as Mongo510 suggested, which is not the way the carrier is usually shimmed by the sounds of it. Quote Link to comment Share on other sites More sharing options...
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