#liftedjeepPHOENIX, AZ

Aftermarket Suspension Q&A


Why is the rear of my truck higher than the front?

Most trucks and SUVs these days come with a slight rake from the factory. Typically they sit two to three inches higher in the rear when unloaded to prevent the rear from being too low when they are fully loaded. For most automotive enthusiasts, towing capacity and load are not as much of a priority as tire clearance, appearance, or performance. Most clients are looking to level the rake when they choose an aftermarket lift so your truck or SUV appears level in the front and rear.

Is an alignment required after installing a lift or lowering your car?

​Yes, we always recommend having an alignment done to your vehicle after you do a suspension upgrade, especially when you are swapping out multiple components like a lift or lowering kit. We don’t offer alignments at Apex because we don’t have the equipment, however we can recommend several reputable shops that can complete the alignment after the suspension has been installed.

How will a lift or lowering kit impact my vehicle’s warranty?

Thanks to the Specialty Equipment Market Association (SEMA), an organization which works on behalf of the aftermarket automotive industry, there is a list of rights regarding vehicle manufacturer warranties and aftermarket equipment. For a Car, Truck, or SUV manufacturer to refuse a warranty claim, it is up to the dealership to prove that aftermarket parts are what caused the issue with the vehicle. More information can be obtained on the SEMA Action Network’s website: http://www.semasan.com

How will a lift or lowering kit impact my vehicles stability?

When you lift your truck or SUV or lower your car, you are changing the center of gravity the vehicle manufacturer intended for the vehicle. As a result, there will be changes to the vehicles stability. For car lowering kits, you can typically expect an improvement in your cars stability thanks to the lower center of gravity. When you lift your truck or SUV you can generally expect the stability to be reduced due to the higher center of gravity. There are cases when you can actually improve the stability of your truck or SUV if you install a moderate lift kit combined with taller and wider wheels.

Should I consider changing my vehicle’s axle gears with my lift or lowering kit?

When you change the tire size on your car, truck, or SUV, it will have an impact on your vehicle’s gear ratios which has a corresponding impact on performance, fuel economy, and even your speedometer. There is no single, simple answer to when you need to swap out your axle gears. A general rule of thumb for lifted vehicles is you can satisfactorily run up to 35” tires with factory gearing. The lower the gear ratio on your factory truck the better. Lowered cars generally don’t need gear swaps unless you are looking for a racing application. There are a variety of aftermarket options for gear swaps for most vehicles if it’s something you are interested in.

How will a truck or SUV lift impact my driveshaft?

Most aftermarket lift kit incorporates driveline corrections into the kit. The suspension kits will include replacement springs and shims and rear lift blocks that address the change in driveshaft angle. In some applications, a relocated differential is required, it needs to be re-timed for proper angle and shaft spline engagement. Holes and lift block pins will be offset to address various shaft length concerns. If your lift is over 6”, you may need to lengthen your driveshaft or added a driveshaft spacer.

How much should I lift my truck?

Choosing your lift size comes down to a matter of preference. Generally a 2” to 3” lift is a good option for improved looks and performance without impacting the everyday drivability of your truck or SUV. When you lift the center of gravity on your truck or SUV will impact the stability of your vehicle if you go too high. Most people add a suspension lift in order to add larger tires. The size of tires you choose and the tire tread on the tires is a good guide for determining the size of lift you should go with. Another consideration is your budget, lift kits and installation can be expensive so be sure to understand the full cost of your lift before committing to the purchase.