A BDS lift kit raises your truck's frame and suspension to increase ground clearance and ride height
BDS Suspension is a manufacturer that makes lift kits — complete systems of springs, shocks, control arms, and brackets designed to work together to lift a truck higher off the ground. When you install a BDS kit, your truck sits several inches taller, which gives you more space between the undercarriage and obstacles like rocks, ruts, or steep terrain. The kit also lets you fit larger tires than the truck's factory setup allows.
A lift kit is not a single part but a coordinated set of components. BDS kits come in different heights — commonly 2.5 inches, 4 inches, or 6 inches — and different designs depending on whether you want a smoother street ride, better off-road performance, or something in between. The height you choose affects how the truck handles, how much it costs, and what other modifications you may need to make.
Key Takeaways
- BDS lift kits raise your truck's frame by replacing factory springs and shocks with taller components that work as a system.
- Lift heights range from 2.5 to 6 inches, and each height changes how your truck rides, steers, and what tires it can safely carry.
- Installation requires removing the factory suspension and bolting in new parts, a job that typically takes a shop several hours to a full day.
- Lifting your truck affects fuel economy, tire wear, and how the transmission and engine work, especially on steep grades.
- You may need to adjust your speedometer, install a brake line extension, or modify your driveshaft depending on lift height and truck model.
How BDS kits differ from other suspension changes
A lift kit is different from straightforward adding taller springs or spacers. BDS kits include new coil springs or leaf springs, new shock absorbers tuned for the added height, and often new control arms or track bars to keep the wheels aligned and the suspension geometry correct. This matters because if you just add height without adjusting the angles of the suspension components, your truck will pull to one side, wear tires unevenly, and handle poorly.
BDS makes kits for specific truck models — a kit for a Ford F-150 will not fit a Chevy Silverado — because each truck's frame, mounting points, and suspension design are different. When you buy a BDS kit, you are buying parts engineered to work with your exact truck, not a generic solution.
What happens when you install a BDS lift kit
Installation involves removing your truck's wheels, unbolting the factory springs and shocks, and bolting in the new BDS components in their place. A professional shop typically takes four to eight hours for a 2.5-inch lift and longer for taller kits, because taller lifts often require additional work like driveshaft modifications or brake line extensions.
During installation, the shop will also check and likely adjust your wheel alignment — the angles at which your wheels point relative to the frame. A lift changes these angles, and if they are not corrected, your truck will drift, your tires will wear in a wedge pattern, and steering will feel heavy or loose. Some BDS kits come with alignment specifications built in, but the shop still needs to measure and adjust.
After installation, you may notice your truck sits higher, the ride feels stiffer (especially on smaller bumps), and the steering may feel slightly different. These changes settle over the first few hundred miles as the new components bed in.
Lift height and what each one means for your truck
A 2.5-inch lift is the smallest common option. It raises your truck noticeably but keeps the suspension geometry close to factory, so handling and fuel economy change less. You can usually fit tires one size larger than stock — for example, moving from 33-inch to 35-inch tires. The ride stays relatively smooth on pavement.
A 4-inch lift is the middle ground. It gives you more ground clearance for serious trails, lets you fit 35-inch or even 37-inch tires, and still works reasonably well on the highway. The ride becomes noticeably stiffer, especially over small bumps, and fuel economy drops more noticeably. Steering effort increases slightly.
A 6-inch lift or taller is built for off-road use. It requires more modifications — driveshaft work, brake line extensions, possibly transmission recalibration — and the truck becomes less comfortable on pavement. Fuel economy drops significantly, and the truck's center of gravity rises, which affects how it handles in emergency maneuvers. Tires of 37 inches or larger become practical.
Changes to your truck after lifting
Your speedometer will read slightly high after a lift, because the speedometer is calibrated to your factory tire size. If you go from 33-inch to 35-inch tires, your speedometer might read 35 mph when you are actually going 34 mph. A recalibration tool or a shop can fix this, or you can accept the small error.
Fuel economy typically drops 1 to 3 miles per gallon, depending on lift height and tire size. A taller truck has more wind resistance, and larger tires roll with more resistance. The engine also works harder on hills because the truck is heavier and sits higher.
Brake lines and driveshafts may need modification on lifts of 4 inches or more. The brake lines that run from the master cylinder to the wheels become too short as the suspension extends, so they must be lengthened or replaced. The driveshaft — the tube that carries power from the transmission to the rear axle — changes angle as the suspension lifts, and on larger lifts it may need to be shortened or rebalanced to prevent vibration.
Tire wear can accelerate if alignment is not done correctly after installation. Uneven wear in a wedge or feather pattern is a sign that camber or toe-in is off. A good alignment shop will catch this, but it is worth checking your tires every few thousand miles in the first year after a lift.
When a BDS lift kit makes sense
A lift kit is worth the cost and complexity if you regularly drive on rough terrain, need to clear obstacles that your factory truck cannot, or want the appearance of a lifted truck. If you drive mostly on pavement and highways, the trade-offs — stiffer ride, lower fuel economy, more maintenance — may not be worth it.
A 2.5-inch lift is a practical middle ground for someone who wants a noticeable change without major compromises. A 4-inch or taller lift is for someone who plans to use the truck off-road or wants the maximum capability and appearance, and who accepts the downsides.
Frequently Asked Questions
Will a BDS lift kit void my truck's warranty?
Possibly. Most manufacturers will not warranty suspension components if you have modified the suspension, but they may still cover engine, transmission, or other unrelated parts. Check your warranty documents or call your dealer before installation. Some dealers are more lenient than others.
Can I install a BDS lift kit myself?
If you have suspension experience and the right tools, yes, but most people should have a shop do it. Suspension work requires a lift, spring compressors, alignment equipment, and knowledge of torque specifications. A mistake can make the truck unsafe. A professional shop is worth the cost.
How long does a BDS lift kit last?
The shocks typically last 50,000 to 80,000 miles before they lose damping and need replacement. Springs and control arms usually last much longer if maintained. Regular inspection and alignment checks extend the life of all components.
Do I need to change my tires when I lift my truck?
Not when ready, but larger tires are one of the main reasons people lift trucks. Your factory tires will fit under a 2.5-inch lift, but a 4-inch or taller lift usually requires larger tires to fill the wheel well and take full advantage of the clearance.
Will lifting my truck make it harder to tow?
A lift itself does not reduce towing capacity, but larger tires and the added weight of the lift kit do. The change is usually small — 100 to 300 pounds — but check your truck's specifications or ask the shop. Towing also becomes slightly less stable because the truck's center of gravity is higher.