If you have a
100" Toyota Land Cruiser with Independant front suspension, and have some
suspension lift, then you may be familiar with the worn CV's, CV Boots, and lack
of travel at the raised height.
This kit is
designed to drop the diff by 25mm, giving your CV;s and their boots a much
better, more factory angle.
In doing this
it will stop the CV boot rubbing on itself causing premature wear (also a
roadworthy item) as well as the CV being a increased angle at all times, this
creates a weak point for the CV, resulting in far more breakages than what
should be normal.
Allows a genuine 50mm of lift without
issues!!
Not every
vehicle with a suspension lift will need a differential drop kit installed. How
do you tell if your vehicle might be able to make use of one? Well, there are a
couple of symptoms which you might want to look for.
Lift the front tires off the
ground and then try grabbing each half shaft of the front axle and slowly turn
it through a full rotation. If you feel any binding in the CV joints at this
full droop condition, that is your CV joints telling you that they are hitting
their angle limit. Also try this with the wheels straight ahead and at full
steering lock to test all cases. A CV joint that binds up under load can
easily snap in the bush.
If you find your CV joint boots
are wearing out unusually fast, that can be a sign of too much angle. Easy
check is to examine the upper ribs of outer CV joint and see if they are being
pinched hard together on the top side of the boot. If so, and especially if
you have the stock front differential disconnect (ADD) system and your CVs are
spinning all the time, this can cause the ribs to wear against each other and
eventually wear through the material and cause the boot to fail. Usually the
more ribs that are touching, the less ideal the CV joint angle is.
If you find your CV joints are
wearing out or breaking more frequently than before you installed the
suspension lift, this may also be a sign of the need to reduce the CV joint
angles with a differential drop kit.
A diff drop kit will not cause a lot
of loss of front ground clearance. As is, the front diff sits higher than the
subframe/cross members and the diff drop will lower the diff down about to the
level of the sub frame/cross member. And the diff housing is made of pretty
thick material to can stand up to a decent amount of abuse. After all, look at
your rear differential, it hangs down lower in back. Now, if you have, or plan
to install, a front suspension cross member, a diff drop kit probably will not
work, as that cross member will be in the way of lowering the front
diff.
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