29 Spline

Nitro Ring & pinions are made from the highest quality forgings using state-of-the-art CNC machining processes. Strict tolerences ensure precision fitment and hassle free installation. Computer controlled lapping processes result in an excellent contact pattern and a quiet running setup that will last.

Each new application is test fitted by real differential experts and put through stringent review process prior to being released. Nitro is hard at work developing new products that you demand.


For many years Nissan Patrols have been well known for their strength & reliability all over the world. Out of the box they feature some stout drivetrain. When lifted and running oversized tires many have found performance and economy to suffer. The best remedy is to change the gear ratio in your differentials. The problem is OEM Ring & Pinions are difficult to source in low ratios, and very expensive. Since Nissan Patrols are not offered in the USA, none of the primary Gear suppliers have offered anything aftermarket, until now. Nitro Gear & Axles has addressed this by offering Ring & Pinions for the robust H233b rear and the H233b front Reverse cut diff. Nitro Gear has quickly become the #1 choice for aftermarket gear ratios around the globe, and makes an effort to cater to demands of consumers whether in the USA or otherwise.

Ratios   4.63       5.13

Vehicle Applications:  
  • 1987-1998 Nissan Patrol GQ Y60 (Front)
  • 1998-2009 Nissan Patrol GU Y61 (Front)
  • 1987-1998 Nissan Safari (Front)
  • 1988-1994 Ford Maverick (Front)