All H233B Axles aren’t the same, they do come in a few different widths but the main difference in the differential itself, is the spline count and diameter of the axle shafts. The H233B comes in both 1.26″ / 31 Spline and 3.31″ / 33-spline versions. however the gear sets and 3rd member housings are interchangeable.
Here is a little bit better breakdown of the H233B and which trucks it came in:
Pathfinder / Terrano: Late 80’s to 1995 – 1.26″/31-spline
Pathfinder: 1996 to 2004 – 1.31″/33-spline
Hardbody Pickup V6/4×4: Late 80’s to 1997 – 1.26″/31-spline
Frontier V6/4×4: 1998 to 2004 – 1.31″/33-spline
Xterra: 2000 to 2004 – 1.31″ / 33-spline
Patrol: Late 80’s to Present – Front 1.26/31-spline & Rear 1.31 /33-spline
If you have additional information on these applications, please contact us.


Happy New Year from Rugged Rocks! We’re kicking off 2011 after a move to South Lake Tahoe, CA over the holidays! After getting a few feet of snow we’re still getting settled in and back into our regular routine of doing business. Due to the recent storms, we’ve had a delay in getting consistent phone and internet services up and running, but it’s expected that we’ll have the issues worked out in the next week or so. Besides the issues with utilities, we’re really looking forward to a killer 2011 being that we’ve got great new products coming right around the corner. We’re now just a stones throw away from some of the greatest wheeling in the country which includes but isn’t limited to the famous Rubicon Trail. Not only does this give us a place to play, but a great area to test new products.