Overview
Installation of 40-inch Mickey Thompson Baja Boss MT tires on Dirty Life Canyon beadlock wheels. Regeared axles with Yukon 4.88s for proper torque and crawlability. Transformed the rig in snow and rocks.
Tools Needed
- • Torque wrench (up to 150 ft-lbs)
- • 1/2" drive impact wrench or breaker bar
- • Beadlock assembly tools / tire mounting machine
- • Jack and stands
- • Socket set (including deep sockets for lug nuts)
- • Pry bars and tire spoons
Materials Used
- • Mickey Thompson Baja Boss MT 40x13.50R17
- • Dirty Life Canyon Beadlock Wheels 17x9
- • Yukon Gear & Axle 4.88 Ring & Pinion Set
- • Wheel spacers (3/8") and lug nuts
- • Balancing beads or weights
Estimated Time
Approximately 4-6 hours (including regear if not pre-done, mounting, balancing, and installation).
Installation Steps
Prepare Wheels and Tires
Mount the Mickey Thompson Baja Boss MT tires onto the Dirty Life Canyon beadlock wheels. Use the correct torque sequence for the beadlock rings. Balance the assemblies.
Regear Axles (if not already done)
Install the Yukon 4.88 ring and pinion sets in the Dana 30/44 axles. This ensures proper gearing for the larger 40" tires.
Remove Old Wheels and Tires
Jack up the vehicle, support with stands, remove the old 37" wheels. Clean the hubs and inspect brake components.
Install New Beadlock Wheels
Mount the new 40" assemblies onto the hubs with 3/8" spacers if needed. Torque lug nuts to spec in a star pattern. Reinstall the spare if applicable.
Test Fit, Balance Check, and Road Test
Lower the vehicle, check for rubbing at full articulation. Re-check torque after a short drive. Verify no vibrations and proper clearance.
Results
The rig now rolls on aggressive 40" Mickey Thompson Baja Boss MT tires on strong Dirty Life beadlocks, with proper regearing for the larger diameter. Transformed capability in snow, rocks, and trails.
Look for the tires card in the Repairs & Mods grid or the CLICK TO INSPECT buttons.