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to the suspension system that
can smooth out the ride. "In
Stock Full you are allowed to
run any spring you want as long
as it fits in the stock location,"
says Hall. "You can also run
up to two custom mounted
shocks. With most of these
vehicles, you can get about
10-inches of front travel and
12-inches at the rear. It's not
a lot, but more than what the
truck originally came with."
Vehicle selection is also key to
finding suspension performance
products that are available for
it. "A four-wheel drive truck will
have nine to 10-inches of wheel
travel in the front, and about 11
to 13-inches at the rear," said
Hall. By comparison, a two-
wheel drive vehicle like the Ford
F-250 offers 12-inches of wheel
travel in front, and 17 at the rear.
"The things that limit the
vehicle are the springs and
shocks. So if you make your
springs and shock selection
right, you can get lots of
travel, but you always have to
stay within the limits of the
OEM ball joints and steering
arms; as well as drive shaft
pinion angles," said Hall.
For vehicles using rear leaf
springs, there is a little more
room to add greater wheel
travel. "Rear travel is really based
upon rear spring length. On
my (Hummer) H3 we had short
leafs; I could only get 11-inches
of travel, but still the springs
were highly stressed. So I
would have to install new leafs
about every 1000 race miles."
When it comes to shock
selection, the weight of the
vehicle and using what's
available for it is important.
"Don't go cheap on shocks,
says Hall. "We ran (single)
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