LEGO Monster Truck MOCs – Big Tires, Big Torque, Big Fun

Monster trucks are basically permission to go wild with Technic beams and oversized tires—pure, grin-inducing engineering. Whether you want a crushed-cars display piece or an RC beast that hops curbs and shrugs off rough terrain, LEGO monster truck MOCs are a perfect playground for suspension geometry, gearing experiments, bodywork tricks, and power systems. Start with a stiff ladder frame (3×5 frames and longer beams for rails), then decide: portal axles for extra ground clearance, or a simple live axle for strength and articulation? Do you want rear-only steering like classic Bigfoot, or four-wheel steering for tight turns? Will you prioritize torque for crawling, or gear up for speed runs on flat ground?

Bodywork choices are wide open. A vintage pickup with chrome vibes? A modern trophy-truck shell? Post-apocalyptic rat rod? At this scale, you can hinge hoods, add working light bars, and hide battery boxes so they’re serviceable but invisible. If you’re going RC, plan your electronics early—battery placement and wire routing can make or break balance and serviceability. Finally, test suspension travel and approach angles with some real obstacles (books, boxes, a small “crush car” build) and tune spring rates, link lengths, and bump stops until the truck rides the way you want. Big tires, big articulation, big smiles.

Build Tips 

• Reinforce the chassis: pair long beams with 3×5 frames; triangle where you can.

• Start with torque: gear down from motors first; add speed only after it climbs cleanly.

• Steering: a dedicated servo + 4-wheel steering (with a simple linkage or a switchable mode) gives monster-tight turning.

• Axles: portal hubs or reduction at the wheel = clearance + torque; live axles for classic articulation.

• Suspension: try pendular or 4-link; test with full battery/weight installed.

• Wheels/tires: larger diameter = clearance; mind scrub radius so steering doesn’t fight you.

• Electronics: pick a power system (PF/Control+/BuWizz/SBrick) and design battery access early.

• Body mounting: make the body removable (2–4 pins) for quick battery swaps.

Ideas for Monster-Truck MOCs

• Classic Bigfoot-era pickup conversions

• Vintage pickups with lifted frames

• Stadium/RC-style racers with long-travel suspension

• 6×6 and 8×8 mega-trucks

• Post-apocalyptic/Mad-Max rat rods

• Compact “Speed Champions” scale monster trucks

• Extreme crawlers with locked diffs and portal axles

• Licensed replicas (Ford/Chevy/Dodge) with sticker packs and light bars

Featured Monster Truck MOCs 

Vintage Monster Truck

Designer: Madoca1977. 
Get the instructions for Vintage Monster Truck by Madoca1977 — link.

Monster Truck With Automated Differential Lock

Designer: KevinMoo. 
Get the instructions for Monster Truck With Automated Differential Lock by KevinMoo — link.

Monster Truck

Designer: Nico71. 
Get the instructions for Monster Truck by Nico71 — link.

BigFoot #1 RC Monster Truck

Designer: Green Gecko. 
Get the instructions for BigFoot #1 RC Monster Truck by Green Gecko — link.

Monster Truck 6×6

Designer: Madoca1977.
Get the instructions for Monster Truck 6×6 by Madoca1977 — link.

Monster Truck

Designer: Madoca1977. 
Get the instructions for Monster Truck by Madoca1977 — link.

1978 Ford F-250 “FIRST BLOOD” (with Sticker Sheet)

Designer: Mad_Modeler. 
Get the instructions for 1978 Ford F-250 “FIRST BLOOD” by Mad_Modeler — link.

Motorized and RC 42005 Monster Truck

Designer: slfroden. 
Get the instructions for Motorized and RC 42005 Monster Truck by slfroden — link.

Azure Monster Truck

Designer: Apachaihapachai. 
Get the instructions for Azure Monster Truck by Apachaihapachai — link.

Mad Max: Fury Road sort of looking Vehicle

Designer: Joebot360. 
Get the instructions for Mad Max: Fury Road sort of looking Vehicle by Joebot360 — link.