Lift Kits and Off-Road Fabrication Done Right

Four-wheel drive modifications and custom builds for drivers in Boise, Idaho.

Your truck or SUV needs more ground clearance, stronger axles, or different gearing to handle the trails and terrain you actually drive on. Four-wheel drive fabrication changes how your vehicle performs off-road and includes everything from lift kits and suspension extensions to axle swaps and gear ratio changes. Les Bois Automotive specializes in off-road builds for drivers in Boise who need their vehicles to climb, crawl, and clear obstacles without breaking down. Whether you are building a weekend trail rig or upgrading your daily driver for better capability, the shop handles the fabrication and installation from start to finish.

The work includes installing lift kits that raise your vehicle's frame and body, replacing axles with stronger units that handle bigger tires, and changing gear ratios to restore power after a lift. Every modification is done with attention to suspension geometry, driveline angles, and brake line length to keep your vehicle safe and functional on the road and off. Boise sits near some of the best off-road areas in Idaho, and the shop builds vehicles that can handle the rocks, mud, and steep grades you will encounter.

If you are planning an off-road build or need four-wheel drive upgrades in Boise, reach out to discuss what your vehicle needs.

What goes into a four-wheel drive build

The shop starts by evaluating your vehicle's current suspension, axles, and drivetrain to determine what modifications will fit and function correctly. In Boise, where drivers use their trucks for everything from commuting to trail running, the goal is to build something that works in both environments. Lift kits are installed using new springs, shocks, control arms, and track bars, and all components are torqued to specification and test-driven before delivery.

After a lift kit is installed, your vehicle sits higher, clears larger tires, and has better approach and departure angles for climbing over obstacles. If axles or gears were changed, you will notice improved power delivery and less strain on your transmission when driving with oversized tires. Your vehicle will feel more planted off-road and handle uneven terrain without bottoming out or losing traction.

Some builds require custom brackets, extended brake lines, or driveline modifications to maintain safe operation after the lift. The shop fabricates these parts in-house when needed and does not cut corners on safety or alignment. Larger builds can take several days depending on the complexity of the suspension work and whether axle swaps or gear changes are included.

Most people want to know these things first

Before committing to a four-wheel drive build, most drivers want to know what the work involves, how much lift makes sense, and whether their vehicle can handle it.

What is the difference between a suspension lift and a body lift?
A suspension lift raises your vehicle by replacing springs and shocks, which improves off-road capability and ride quality, while a body lift uses spacers to raise only the body and does not change suspension travel or handling.
How much lift do I need for larger tires?
It depends on your vehicle and tire size, but most trucks need a three-inch lift for 35-inch tires and a six-inch lift for 37-inch tires to avoid rubbing during turning or suspension flex.
Why would I need to change my gears after a lift?
Larger tires reduce your effective gear ratio, which makes your engine work harder and can hurt acceleration and fuel economy, so re-gearing restores the power and drivability you had before the lift.
Can you build a vehicle for both street and off-road use?
Yes, the shop regularly builds dual-purpose rigs using lift kits and suspension setups that handle daily driving in Boise while still offering the clearance and articulation needed for trails.
What is involved in an axle swap?
An axle swap involves removing your factory axles and installing stronger aftermarket units that support bigger tires, heavier loads, or more aggressive wheeling, and it often includes new gearing, brakes, and driveshafts.

Les Bois Automotive has been building four-wheel drive vehicles for Boise drivers who need their trucks and SUVs to perform off-road without compromising safety or reliability. If you are ready to start a build or need off-road fabrication, call (208) 481-0690 to discuss your project.