Rivian R1T vs Jeep Gladiator Mojave: Off-Road Showdown
content: Electric Innovation vs Mechanical Muscle in Dirt
When you're comparing $70,000+ off-road trucks, the core question isn't just about capability—it's about how each vehicle achieves it. After analyzing Edmunds' head-to-head test between the Rivian R1T and Jeep Gladiator Mojave, I've identified critical insights most reviews miss. Both trucks tackled the Hungry Valley Off-Road Park's stair steps, whoops, and punishing hills, but their paths to success revealed fundamental truths about modern off-roading. If you're weighing electric torque against locking differentials, you'll want to see where each philosophy shines...and where both hit the same wall.
Core Technical Differences That Matter
Power delivery separates these trucks immediately: The Rivian's 835 hp and 908 lb-ft of torque arrive instantly at all four wheels, while the Gladiator's 285 hp V6 relies on traditional gearing. But raw numbers don't tell the full story. The Mojave's specialized Fox shocks with hydraulic jounce bumpers—a $4,000 upgrade over standard Gladiators—proved essential for high-speed desert runs. Meanwhile, the R1T's adaptive air suspension allowed 15 inches of ground clearance, though its Pirelli Scorpion tires struggled in loose terrain compared to the Jeep's Falken Wildpeaks.
The locking differential debate needs context: Jeep's rear locker (engageable in 4Hi via Off-Road Plus mode) provided predictable crawling, but the lack of a front locker became its Achilles' heel on steep climbs. Rivian's torque vectoring system effectively mimicked locker behavior in most scenarios—until extreme articulation demanded mechanical certainty. As one tester noted: "When the rear tire lifted, the computers couldn't compensate for insufficient tire bite."
Real-World Performance Breakdown
Articulation and slow-speed control favored the Jeep initially. During the "ziggurat stair step" test, the Gladiator's solid axles maintained better contact, though the Rivian surprisingly conquered all three steps despite momentary wheelspin. Where the R1T shocked testers was in rock crawl mode—its independent suspension and precise throttle modulation scaled 25-degree inclines effortlessly, matching the locked Mojave.
High-speed compromises emerged clearly:
- Rivian's air suspension smoothed moderate whoops at 30+ mph but bottomed violently in deep ruts, limited by suspension travel
- Mojave's Off-Road Plus mode excelled in chop, though solid axles caused noticeable bounce at speed
- Critical limitation: Rivian's highest ride height caps speed at 20 mph—a software restriction many owners overlook
The defining hill climb failure exposed both trucks' limits identically. On a 35-degree incline with cross-axle ruts, neither vehicle could summit:
- Jeep's missing front locker caused wheelspin despite rear lock
- Rivian's inadequate tire grip overwhelmed torque vectoring
- Both required recovery after multiple attempts
Key Takeaways for Off-Road Buyers
Powertrain type proved secondary to tires and suspension. The Rivian's electric motors never limited capability—its constraints were the same as the Jeep's: insufficient traction and travel for extreme obstacles. However, the Mojave's $25,000 lower price brings critical advantages: you could add front lockers and premium tires while staying cost-competitive.
Three critical considerations from our testing:
- Tire selection outweighs drivetrain: Both trucks failed the same hill due to traction limits, not power or tech
- Suspension design dictates comfort: IFS smoothed trails but lacked depth; solid axles handled impacts but traded refinement
- Software can't overcome physics: Rivian's computers couldn't fake grip, while Jeep's lockers couldn't create it
Actionable Off-Road Toolkit
Immediate checklist before your next trail:
- Air down to 25 PSI (but monitor Rivian range impact)
- Verify terrain-specific drive modes (disable Rivian speed limits in settings)
- Pack traction boards (both trucks needed them)
- Inspect approach/departure angles (Rivian: 34°/30°, Mojave: 44°/26°)
- Test locker/torque vectoring pre-obstacle
Upgrade recommendations:
- Rivian owners: Swap to LT-rated all-terrains (e.g., BFGoodrich KO2) for sidewall support
- Mojave owners: Install front locker (ARB Air Locker ≈$1,200) for crawling balance
- Both: Carry portable compressors—airing up is non-negotiable
Final verdict? If you prioritize dune running and tech, the Rivian impresses. For rock crawling and aftermarket freedom, the Jeep delivers. But as Emmy concluded: "Everything you could do, I could do. Everything you couldn't, I couldn't." The true winner is the driver who matches the truck to their terrain.
Which limitation surprised you most—the Rivian's suspension travel or Jeep's missing front locker? Share your dealbreaker below.
