GTM shock springs are offered in different rates to tune your suspension performance or compensate for lighter or heavier vehicle configurations. The higher the spring rate number, the firmer the spring. (0.155 rate) (1 pair)

GTM shock springs are offered in different rates to tune your suspension performance or compensate for lighter or heavier vehicle configurations. The higher the spring rate number, the firmer the spring. (0.095 rate) (1 pair)

GTM shock springs are offered in different rates to tune your suspension performance or compensate for lighter or heavier vehicle configurations. The higher the spring rate number, the firmer the spring. (0.072 rate) (1 pair)

Front and rear center driveshafts come assembled and ready to install Replacement part for these models: TRX-4M™ 1/18 Ford® Bronco® TRX-4M™ 1/18 Land Rover® Defender®

Pair of front stub axles with cross pins (2), and drive pins (4) Replacement part for these models: TRX-4M™ 1/18 Ford® Bronco® TRX-4M™ 1/18 Land Rover® Defender®

Upgrade your TRX-4M’s™ center drivetrain with these heavy-duty telescoping driveshafts. Tough steel drive hubs key into brightly anodized 6061-T6 aluminum shafts for unbeatable strength and style.

Refresh the oil-filled GTM shocks in your TRX-4M™ with this rebuild kit. Includes O-rings (4), spacers (2), bladders (2), and bottom caps (2). Refreshes two shocks.

Set of four brass wheel hubs adds valuable weight to the lowest part of your TRX-4M™ for improved anti-rollover stability. Includes axle pins (8)

Set of four 7 mm steel wheel hubs increase strength and add valuable weight to the lowest part of your TRX-4M™ for improved anti-rollover stability. Includes axle pins (8)

Front and rear gearbox halves with 2x4 mm screws (2), 2x8 mm screws (2), 3x16 mm pins (2), and 3x6x2.5 mm self-lubricating bushings (6). Replacement part for these models: TRX-4M™ 1/18 Ford® Bronco® TRX-4M™ 1/18 Land Rover® Defender®

Pro Built® rear axles come professionally assembled and ready to install in your TRX-4M™. Axles come complete with metal half shafts, bushings, wheel hubs, and wheel nuts.

Pro Built® front axles come professionally assembled and ready to install in your TRX-4M™. Axles come complete with metal half shafts, caster blocks, steering blocks, bushings, wheel hubs, and wheel nuts.