Beta Motorsports 4230 custom billet 27T stubs
Finally! A solution for those who want to use an STi R-180 LSD under a 510 or a Z-car. $500/pr. I painted the flanges black and have started to install new press-in bolts. Bolt head must be clocked correctly to clear lip when you press them in. I just greased them a bit and used stacks of washers and tightened the nut to 'press' them in.
A set of 16 bolts/washers/nuts runs $75+ including my discount at the Nissan dealer.
Nissan 510 halfshaft bolts PN 39628-E4100
Nissan halfshaft nuts PN 39627-N3000
Nissan halfshaft washers PN 08915-2401A
Nissan 240z halfshaft bolts PN 38228-21000
(D-headed, not hex-head, currently out of stock, but $1.50/bolt cheaper)
(Torque to 58 lb-ft once installed)