By Brian Turner
August 14, 2014
No doubt about it, the segment of the new
vehicle market that sees the most dollars spent on accessories is the
light truck division. Whether it’s functional, such as side steps or
tonneau covers, or purely decorative like striping and chrome fuel-cap
doors, truck owners like to put their own personal stamp on their rides.
One of the most popular modifications that
truck owners can make to their vehicles is the installation of a lift
kit. These kits range from the mild two-inch variety all the way up to
the car-crunching arena-star category. Many non-truckers may argue that
they are a waste of time and money, but for a real off-road enthusiast,
nothing beats ground clearance and even the most vocal critics would
have a hard time not being impressed with the image of rough and
toughness bestowed upon a new truck with a four-inch lift and properly
over-sized wheels and tires. As with any complicated and involved add-on
such as a suspension lift, some homework needs to be done before
hitting the accessory stores.
For the uninitiated, lift kits come in a
variety of forms. Short two-inch lifts usually involve mounting
specially-formed steel or alloy blocks to the existing shocks/struts or
to the springs to increase the distance between the truck’s body and the
axles. Larger kits such as four-inch to eight-inch packages involve
swapping out suspension control arms, springs, linkages, and a large
number of other components to increase the truck’s ride height. Few of
these kits are easily installed by a do-it-yourselfer as they usually
require special tools, equipment and knowledge. Prices can range from a
few hundred dollars to well over $5,000 when you include the price of
new rims and tires.
True or false? Do these car hacks actually work?
On a new vehicle you need to be concerned
about warranty ramifications. All automakers are specifically silent on
lift kits in their owner literature and will refer anyone who asks to
their universal paragraph: “Warranty shall not apply to any failure
directly related to the installation and operation of non-OEM (Original
Equipment Manufacturer) parts or equipment.” That being said, off the
record, most truck makers will have no problem with up to two-inch
lifts, but will pretty much refuse any warranty repairs on anything
higher. Some lift kit suppliers will offer their own powertrain warranty
to customers in order to help reduce the financial risk with the lack
of OEM warranty coverage. Auto makers will point to the additional
strain that larger wheels and tires can put on axle bearings, steering
and suspension and drive-line components as the reason for their refusal
to extend their warranties on modified trucks.
When considering a four-inch or higher lift,
do some research. Good kits will include longer brake lines, modified
steering linkages, and some type of equipment to maintain the
drive-shafts’ working angles. This latter item is often overlooked by
eager off-roaders and it can cause the most expensive damage to axles
and transfer cases. When a truck suspension is raised the distance
between the transfer case and the axles increases, and the angles
between the drive-shafts and those components change. If left
unattended, these changes can destroy transfer-case seals and bearings
among other things in short order. A proper lift kit will include angled
lift blocks, or differential spacers or specially designed radius arms
to minimize this change. Some kits will even contain modified
drive-shafts. Not all repair centres are familiar with this type of
work, so you may have to search out 4×4 truck modifier specialists.
While many lower lift kit suppliers
(two-inch to three-inch) don’t suggest having a wheel alignment check
done after installation, it’s a good idea to verify those specs to save
prematurely wearing out tires. Almost all higher lift kit instructions
recommend a wheel alignment. If the new, larger wheel rims require
spacer plates, make sure a coating of heat-proof lubricant is applied to
any surface that will contact either the rim or wheel hub. Most of
these spacer plates are aluminum and will react badly when in contact
with steel or iron components in wet conditions. Don’t ever take for
granted the damage that wider tires will cause to the painted surface of
your truck. If your new tires and rims cause the tread to stick out any
distance beyond the fender line, the stones that the tires will kick up
will ruin the paint in a matter of a few kilometers (even on a paved
road). If you’re taking the time, trouble, and expense to install a lift
kit and some sick tires and rims, get a good quality set of fender
flares to protect your truck’s finish.
source : http://driving.ca/ford/auto-news/news/the-pitfalls-of-jacking-up-your-pickup
No comments:
Post a Comment