TRD Pro Toy­ota re­veals new off-road good­ies

Motor Trend (USA) - - Intake - Alisa Prid­dle

For 2019, the en­gi­neers at Toy­ota Rac­ing De­vel­op­ment have worked their magic on the Tundra full-size pickup (af­ter a year’s hia­tus), as well as new vari­a­tions of the Ta­coma mid­size pickup and 4Run­ner SUV, all avail­able this fall.

All three get Fox 2.5-inch rear alu­minum-bod­ied in­ter­nal by­pass shocks to im­prove damp­ing for ev­ery­thing from rock crawl­ing to high-speed desert run­ning and to pro­vide bet­ter on-road per­for­mance.

Off-road race ve­hi­cles tra­di­tion­ally have ex­ter­nal by­pass tubes, but Toy­ota went for a Fox shock with by­pass zones in­side the shock for a more cush­ioned ride. For bet­ter bot­tom­ing re­sis­tance, the shock be­comes stiffer at the ex­tremes of its stroke. The front shocks are paired with spe­cially tuned TRD springs for ride com­fort and ad­di­tional lift for the trail, and dust boots keep con­tam­i­na­tion out of the front and rear shocks.

The Tundra has rear leaf springs, the 4Run­ner uses the TRD off-road-grade rear coil springs, and the Ta­coma has pro­gres­sive-rate off-road leaf springs.

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