Fits years 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 

Trail-Gear is proud to announce our new addition to the Rock Assault product line, the Rock Assault Nissan Patrol Birfield Kit. The Rock Assault Nissan Patrol Birfield Kit is made out of nothing but the best materials. The Rock Assault Nissan Patrol birfield housing is made out of forged 4340 chromoly steel. The axle shafts are also made out of 4340 chromoly steel. The internals of our Rock Assault Nissan Patrol birfields are made out of 300M chromoly steel. The average failure rate was consistently at 8500 ft. lbs. of applied torque at a 30 degree angle. Note: Some minor clearancing of the knuckle ball may be required.