tightywhitey185 Posted October 27, 2017 Share Posted October 27, 2017 I decided to buy An OBX of Ebay after reading threads about this diff. I have read about checking to make sure the gears are placed correctly etc. The center section I got looks different than the ones I have seen on discussions here. The ring gear seems to fit snugly. bolt patterns correct. looks like it takes the same bearings but haven't measured exactly yet. Spline count is correct and fits my axle input nicely. Did I recieve the correct helical?? I ordered it for my Z31 R200 open diff. If so should I still disassemble to check for correct gear orientation? Thanks here is what I got..... Quote Link to comment Share on other sites More sharing options...
tightywhitey185 Posted October 27, 2017 Author Share Posted October 27, 2017 This is what the ebay picture looked like. This is what I thought mine was going to look like. Quote Link to comment Share on other sites More sharing options...
grannyknot Posted October 27, 2017 Share Posted October 27, 2017 It certainly looks like the right one but make sure you confirm with the part # I would say you should disassemble not only to make sure the gears are in the right orientation but also to replace those cheesy washers that OBX uses, they won't last if you don't replace them. Quote Link to comment Share on other sites More sharing options...
tightywhitey185 Posted October 27, 2017 Author Share Posted October 27, 2017 (edited) Is there a link to Mccmaster Carr for those washers? If i remember someone on here was selling a kit? The part number on the OBX does say 10528 like the invoice so I think it is correct. Thanks again Edited October 27, 2017 by tightywhitey185 Quote Link to comment Share on other sites More sharing options...
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