Transfer Cases

Upgrade your 1986-1997 Nissan Hardbody D21 with lower transfer case gearing or an aftermarket transfer case to dramatically improve low-speed torque and crawl control in 4-LO. Deeper transfer case gears multiply torque at the wheels, helping your Hardbody maintain better control while climbing steep grades, navigating large rocks, and crawling through technical trail obstacles.

Nissan Hardbody D21 transfer case upgrades can include lower-range gearing, transfer case doublers, Atlas transfer cases, and other aftermarket solutions designed for serious off-road use. These upgrades can provide substantially lower crawl ratios than the factory drivetrain and reduce the amount of throttle needed when tackling difficult terrain.

For dedicated rock crawlers and heavily modified Nissan Hardbody D21 builds, an upgraded transfer case or doubler can be an important part of creating a drivetrain capable of controlled, low-speed technical driving.

Shop transfer cases, low-range gearing, doublers, and related components for 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, and 1997 Nissan Hardbody D21 models below.