01 / Axle
Clear the diff
Axle clearance determines which rocks pass under the lowest hard parts.
Built for hard lines
For the serious crawlers
The parts you choose matter most when the line gets ugly.
Build around axle clearance, usable traction, protected rockers, and a recovery plan. Explore Turn Offroad portals, high-clearance armor, rock sliders, and the supporting parts that make a hard-working rig.
01 / Trail-tested hardware
Think in systems
Build for contact, clearance and control.
There is no single magic part. Tire size, gearing, clearance, wheelbase, armor, and recovery all affect how a rig takes a line. Start with the obstacle and the parts most likely to touch it.
02 / Drivetrain
Use the torque
Consider gearing and tire size together so low-speed control stays useful.
03 / Body
Protect the line
Sliders, bumpers, and skid coverage manage contact at the rockers and ends.
04 / Recovery
Plan the exit
A recovery plan belongs in the build before you need it on the trail.
A build path is a planning guide, not a fitment guarantee. Check each product and your vehicle configuration before ordering.
Portal systems
Clearance at the hub. Torque at the wheel.
Portals move the wheel hub below the axle centerline to gain clearance at a hard point while gear reduction happens inside the portal box. Compare the application-specific systems below before planning tires, wheels, armor, and installation.
Portal-equipped trail rigs
Why a portal?
The axle and differential gain clearance without relying on suspension height alone. Reduction at the wheel helps restore mechanical advantage with larger tires.
Bronco
2021–2026 Bronco, non-Raptor
4.75 inHub-level clearance
11%Portal reduction
A Bronco-specific system for hub-level clearance and larger-tire control. Review wheel, brake, and suspension requirements.
Explore Bronco portalsJeep JK Rubicon
2007–2018 JK Rubicon
4.75 inHub-level clearance
25%Portal reduction
JK Rubicon development and heavy rock-crawling testing are underway. JL Rubicon is a separate application in development.
Follow Jeep portalsToyota 4Runner
2003–2009 4Runner 4WD
4.75 inHub-level clearance
11%Portal reduction
A 4Runner-specific kit for V6 and V8 4WD models. Review launch updates and final installation requirements.
Follow Toyota portalsFigures are application-specific product-page claims. Check the linked product for final specifications, fitment, wheel requirements, and current ordering status.
Build paths
Parts that work together.
Choose a platform and plan the complete line: clearance, protection, and a way out. Each path is a starting point, not a preset kit.
Bronco
Axle clearance first
A portal-led Bronco setup with protection matched to the obstacles and tire plan.
- Evaluate Bronco portals and wheel/tire requirements
- Add high-clearance front armor and skid protection
- Protect the rockers with Bronco sliders
Jeep JK Rubicon
Build around the JK
Plan the JK Rubicon portal setup alongside the parts that protect the body and help recover the rig.
- Follow JK Rubicon portal testing and final fitment
- Choose frame-mounted JK sliders and front armor
- Plan winch access and recovery hardware
Toyota 4Runner 4WD
Take the 4Runner further
Pair the 4Runner portal application with a wheel and tire plan, contact protection, and recovery access.
- Review 2003–2009 4Runner 4WD portal fitment
- Check wheel, tire, brake, and armor requirements
- Plan recovery gear for the terrain
Confirm model year, trim, tire and wheel setup, and product compatibility before combining parts.
The parts that take the hit
Build the contact points.
Choose protection by where the rig makes contact: nose and underside, rockers, and the recovery points you can actually reach.
Bumpers and skids
Consider approach angle, winch fit, front camera clearance, and the underside that meets the obstacle first.
Browse crawler partsRock sliders
Choose rocker protection for your exact body and mounting requirements. The slider should be ready for actual contact.
Browse crawler partsRecovery and support
Plan winch access, recovery points, and spare-tire support around the rest of the build.
Browse crawler partsCurated crawler parts
Shop the hard-use gear.
Portals, bumpers, skids, sliders, and support hardware chosen for rigs that see real trail contact. Compare parts by vehicle and purpose below.
Check product fitment, installation requirements, and current availability before ordering.
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