Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - will s13/s14 diff fits into s15 pumpkin (spec-r, 6 speed, HLSD)

Croustibat · 01-06-2013, 03:46 PM

Use S13 bolts. I went the other way (S15 helical in my S13), we used the S13 bolts with the S13 crown on the S15 HLSD and its ok.

BTW you dont want the S15 crown and pignon. If you can ditch them and get an S13 one, get it (S14 and S15 are 3.7, S13 is 3.9).

You should also prepare to get a new gearbox. The 6spd is known to break easily, not sure the added strain of a clutch type LSD is going to help it survive for long.

I heard nismo makes bolts to fit the S13 crown on the S15 diff that would be a perfect fit too.

01-06-2013, 03:46 PM	#2
Croustibat Nissanaholic! Join Date: Aug 2011 Location: France - Toulouse Age: 44 Posts: 1,851 Trader Rating: (0)	Use S13 bolts. I went the other way (S15 helical in my S13), we used the S13 bolts with the S13 crown on the S15 HLSD and its ok. BTW you dont want the S15 crown and pignon. If you can ditch them and get an S13 one, get it (S14 and S15 are 3.7, S13 is 3.9). You should also prepare to get a new gearbox. The 6spd is known to break easily, not sure the added strain of a clutch type LSD is going to help it survive for long. I heard nismo makes bolts to fit the S13 crown on the S15 diff that would be a perfect fit too.