Rear differential pinion count for rear locker

[RCWD21]

I'm trying to figure out, after tons of researching, if I need to get the locker for the 2 pinion differential or the 4 pinion differential. It's an open h233b in an 87 pathfinder. I would assume I need the 2 pinion since it's listed for the albeit front differential of older model patrols. And the 4 pinion is listed with newer models. I don't want to tear open the case just to look since I just put new fluid in a while back. I want a locker in this rear end since I very quickly found the limits of the factory LSD that was in my 90 pathfinder with heavy toyo open country's.

[hawairish]

Try a VIN search at nissanpartsdeals.com, then drill down to the Rear Final Drive section. The diagrams should show what was available. A non-VIN search for an 87 only shows it having the 4-pinion. I've been using this site frequently for parts cross-references...in fact, coincidentally, most recently for cross-referencing 2-pinion open carriers in H233Bs. It's been very reliable.

 

To confirm, you can peek into the fill hole on the diff and see the carrier without having to drain anything. Rotate the driveshaft, and if you see a solid carrier instead of side or spider gears, you've got the 4-pinion.

[RCWD21]

Well now that I know what I'm looking for that should be an easy determination. Awesome it's still a parts list but it's nice to have specifics

[hawairish]

Cool. And you've probably seen this already, but one of the pics gives you an idea of what you're looking for through the fill hole:

http://nissannut.com/projects/lock_right_h233b/

 

 

vs.

 

 

Edited June 12, 2018 by hawairish

[RCWD21]

Actually I haven't seen that yet but now I have so there's no doubt about it anymore. Thanks for the pics I like direct information like this, helps my brain not second guess itself haha