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A Beginner's Guide to 4x4 Suspension Lift Kits
Factors to Consider with Truck Suspension Lift Kits:
* Installation: Many manufacturers offer manuals for installing truck lift kits onto certain vehicles; however, some installations are quite intricate, requiring some welding or cutting in order to add some necessary components. In this case, having a trusted mechanic or a few knowledgeable friends is the best resolution.
* Additional Modifications: Upgrading to truck lift kits with taller tires also means that a number of components may require part upgrades or some tuning to compensate. For instance, a truck's engine is tuned at specific gear ratios to propel the vehicle. When adding taller tires, the gear ratios must be tweaked accordingly, since the engine has to spin much larger, heavier tires. Again, consult with more experienced individuals for further insight.
* Highway Performance: Larger, wider tires can sometimes result in instability on roads or a noisy, uncomfortable ride, particularly at high speeds. Also, more aggressive off-road tires tend to wear faster on the highway, and traction might not be as great as you would expect on wet roads. In this sense, larger tires can sometimes be a gamble without any direction from an experienced off-road veteran.
* Weight: larger tires are heavier, which can put a lot of strain on your suspension, particularly if it's a stock suspension. Trusted, durable suspension components and lighter aluminum wheels can sometimes help to reduce the strain.
* Handling: Adding truck suspension lift kits will undoubtedly raise the vehicle's center of gravity, resulting in less stable turns. This is a common issue when installing truck lift kits, but is mostly just a matter of becoming accustomed to a vehicle's change in performance.
* Legality: Some suspension lift kits are such a serious change in your suspension system that it may not be legal. Check the suspension regulations within your country, state, or province to be sure.
* A Few Useful Accessories: Before installing a lift kit, it's a good idea to first examine if any components will be affected by your vehicle's new height. Here are a few useful accessories that may need to be upgraded:
o Brake Upgrades: Stock brakes can't always accommodate larger tires, or will wear easily due to the added strain.
o Drivetrain and Differential: Axles, gears, differential covers, lockers and more ensure that your drivetrain is up to par with your suspension.
o Replacement Parts: Longer Control Arms and Track Bars to compensate for the additional height of your rig.
o Shocks: For those taller lifts, longer shocks will ensure the smoothest performance both on and off road.
o Other
auto parts: Steering linkage, slip yoke, drive shaft length, u-joint angle, and brake lines are all worthy of consideration before installing suspension lift kits.
Installing Suspension Lift Kits:
When it comes time to install a lift kit, there are two ways possible ways to go about it: install it yourself, or have a professional do the job. Naturally, each has its advantages and disadvantages, and when it comes to your rig, attention to detail is crucial. A general rule to follow is that even if you know you want a large lift, it's best to start with a small lift and work your way up. This allows you to work out any kinks and hindrances along the way to make sure your kit works right.
1.
Do-It-Yourself
Even if you're not technically inclined, taking the time to learn the inner mechanics of your vehicle is a valuable experience that can save you time and money. An intimate knowledge of your rig can also allow you to make your own modifications to your vehicle if the need arises. There are numerous resources available that can usually guide you through the majority of the process; however, one must keep in mind that it's a lot to take in, and tweaking the intricate components of your vehicle is no small matter. It's always a good idea to have a second set of hands or an experienced individual assisting you.
On the downside, even with the increasing availability of bolt-on kits, installing suspension lift kits is no easy task, particularly if you're a beginner. Additionally, certain instructions or resources can sometimes be misleading or based upon the personal preferences of individual gearheads. Often times, after installing a lift kit you'll find yourself spending hours tweaking the other components of your vehicle to get them back to spec. That's a whole lot to take on, particularly if you're inexperienced.
2.
Mechanic
A licensed professional installing your lift kit is typically the best way to ensure that suspension lift kits are installed correctly, so long as you're willing to pay the labor charges. A professional can perfectly tune your vehicle to your liking and see to it that all components are working as they should, all within a fraction of the time it would take even the most experienced gearheads to install it themselves.
On the other hand, as is the case with regard to any mechanic, it might be difficult to find one you can trust to install the kit properly while not overcharging you for any unnecessary parts. Also, if you're not a gearhead, anytime there's a functional deficiency or your vehicle needs minor tweaking, you have no choice but to return to the mechanic for service.
Suspension Lift Sizes:
Small: A small lift consists of 1.5 or fewer inches, and will grant you a little more clearance and room to run slightly larger tires. The most common way to gain a small lift is by using coil spacers in front and long shackles in the rear.
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Advantages/Disadvantages: Small lifts are inexpensive and easy to install with very few complications.
Medium: A medium lift is roughly 2" of lift, and is a good choice for those looking for the best tire clearance, but aren't planning on doing any off-roading. Common medium-sized lifts use spacer and add-a-leaf lifts, and sometimes come with new shocks.
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Advantages/Disadvantages: You'll notice changes in handling and performance: some good, some bad. You'll also need strong rear springs, and if you plan to use an add-a-leaf kit, later modification for more lift may be difficult, since add-a-leafs are designed to lift stock springs.
Large: The largest lifts consist of 3 to 4" or more for an aggressive look and the best off-road performance. A common large lift setup consists of new front coils and add-a-leafs in the rear, plus some combination of new front coils and new rear springs. These kits often include a matching set of shocks.
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Advantages/Disadvantages: Large lifts are obviously the most expensive, and more complications are expected than with smaller lifts. On-road performance will also be affected, sometimes dramatically. But a large lift will transform your rig into an intimidating off-road machine that will stand out among a crowd.
Types of Suspension Lift Kits:
Spring Over Axle (SPOA):
SPOA suspension lift kits are most popular among serious rock crawlers looking for the utmost articulation (up and down wheel travel). These truck lift kits keep the tires on the ground for maximum traction, while correctly lifted springs lifts everything out of harm's way, including the springs.
Shackle Reverse (S/R) Suspension Lift Kits:
S/R truck lift kits are designed to provide a smooth ride upon mild terrain such as forest roads, desert driving, and scenic trails; however, high-speed driving on highways is not recommended.
Coil Suspension Lift Kits:
The choice of many of the world's best-riding 4 wheel drive vehicles, Coil Suspension Lift Kits offer unrivaled ride quality and cheaper springs, but installation sometimes requires some welding. The end result, however, is a suspension lift kit that provides excellent articulation on the trail, and a comfortable ride you have to feel to believe.
Lifted Spring Suspension Lift Kits:
The most commonly used type of truck lift kits in the world, Lifted Spring systems are easier to install, and an excellent choice for first-time lifters in the off-road world. These truck lift kits allow you to run larger tires for additional clearance, while producing control on the highway.
Shackle Suspension Lift Kits:
As probably the most affordable way to add inches to your rig, Shackle Suspension Lift Kits are primarily for the truck enthusiast looking to add larger tires, yet are not intending to do much hardcore off-roading. Moderation is recommended with these truck lift kits, as Shackle systems are known to affect steering and sway control.
