Nismo GT Pro Lsd - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MADMIKE · 04-30-2012, 02:53 PM

So I picked up an S13 Short Nose while I was on vacation in Cali for New Years. The PO stated that the Diff was a GT PRO. I cracked the thing apart yesterday and I am unable to locate any identifying numbers on this thing. It looks like the GT/GT Pro CLSD case. I have not opened the guts of it yet to count discs and what not. Anyone know where I can find a breakdown diagram or Service manual for these things.

The manufacturing quality on it is very nice so I don't believe this is a knock off, though I could be wrong.
Pics

Drivers side

Passenger side does have 19mm nut, though I cant budge it while it is out of the car.

Lastly how do decipher if it is a 2way as advertised or 1.5way. I bought it for super cheap so I am not too worried if it turns out to be bunk...

Thanks again

MADMIKE · 05-05-2012, 01:04 AM

Really nobody has worked with one of these diffs?

wawazat8402 · 05-07-2012, 10:35 AM

The article below will help explain identifying the cams to determine lockup characteristics. Im not familiar with the Nismo diffs to help you confirm that is what it is though. Check page 2 in the link below.

Project NSX Part 2, Tuning a Limited Slip Differential; Tricks of the Pros

04-30-2012, 02:53 PM	#1
MADMIKE Join Date: Nov 2008 Location: Mass Age: 41 Posts: 48 Trader Rating: (1) Feedback Score: 1 reviews	Nismo GT Pro Lsd So I picked up an S13 Short Nose while I was on vacation in Cali for New Years. The PO stated that the Diff was a GT PRO. I cracked the thing apart yesterday and I am unable to locate any identifying numbers on this thing. It looks like the GT/GT Pro CLSD case. I have not opened the guts of it yet to count discs and what not. Anyone know where I can find a breakdown diagram or Service manual for these things. The manufacturing quality on it is very nice so I don't believe this is a knock off, though I could be wrong. Pics Drivers side Passenger side does have 19mm nut, though I cant budge it while it is out of the car. Lastly how do decipher if it is a 2way as advertised or 1.5way. I bought it for super cheap so I am not too worried if it turns out to be bunk... Thanks again

05-05-2012, 01:04 AM	#2
MADMIKE Join Date: Nov 2008 Location: Mass Age: 41 Posts: 48 Trader Rating: (1) Feedback Score: 1 reviews	Really nobody has worked with one of these diffs? Last edited by MADMIKE; 05-06-2012 at 11:55 AM..

05-07-2012, 10:35 AM	#3
wawazat8402 Zilvia Member Join Date: Jan 2005 Location: OKC, OK Age: 41 Posts: 183 Trader Rating: (14) Feedback Score: 14 reviews	The article below will help explain identifying the cams to determine lockup characteristics. Im not familiar with the Nismo diffs to help you confirm that is what it is though. Check page 2 in the link below. Project NSX Part 2, Tuning a Limited Slip Differential; Tricks of the Pros