"Race on Sunday, sell on Monday" has long
been the philosophy of the auto manufacturers, who boldly promote their
cars on the racing circuit to sell more of them to the public for use on
the street. Until now, this quote has not been applicable to Suzuki 4x4s.
Have you ever been out on the trail when you or a
friend has bent or torn the stock transfer case mounts? This has become a
more common occurrence as many Suzuki owners choose to upgrade to a 1600cc
or larger engine. Even with an unmodified 1300, the 4.16 and 4.89 transfer
cases provide so much torque multiplication that the stock mounting
brackets can--and do--fail. Sometimes the problem is nothing more than one
or both of the transfer case arms bending; other times, the transfer case
has been known to completely fall out the bottom of the truck!
Frequent
rock crawlers know that periodic replacement of the brackets is expensive
and annoying. Several vendors have addressed this problem with reinforced
units typically built from the stock units. However, as today's
four-wheelers are able to take on progressively more difficult trails and
push the limits of the vehicles further, even the beefed-up mounts are
inadequate. People are continuing to have problems even with the modified
aftermarket replacements.
The problem is not with the quality of these other
units, but with the way in which the mounts were designed by Suzuki to
bolt to the transfer case. No matter how strong the new mounts are,
existing designs have still utilized only the four stock bolt holes in the
transfer case. Those holes can only handle a certain amount of torque
until they shear or oval. Until recently, nobody had engineered a stronger
mount design.
When Rick Rogers, owner of Mild to Wild Suzukis in
Grants Pass, Oregon, built a Samurai to race in the Tuff Truck circuit,
one consistent problem he had while testing the truck was the transfer
case mounts. High RPMs, jumps, and aggressive driving made even the
aftermarket mounts useless. Racing caused so much torque--twisting the
transfer case on its brackets--that it actually cracked the transfer case
housing!
Putting
his mind to work to solve this common problem, Rick came up with an
elegant solution: starting with a stock transfer case mount, he welded
some square tubing into it to make a "standard aftermarket transfer
case mount." He then cut, bent, reinforced, and welded on an additional
bracket that utilizes three of the four bolt holes surrounding the rear
output shaft (where the SJ410's transfer case-mounted parking brake was
designed to mount). The unit looked like it would be really tough, so even
though the transfer case housing had previously been cracked by the old
mount, allowing only three of the four standard mounting holes to be used,
the new bracket was bolted onto the Tuff Truck's transfer case for some
testing.
Despite the already compromised integrity of Air
Zuk's transfer case housing, the bracket survived all the testing. In
fact, throughout the entire racing season there was not one problem with
the mount or the transfer case. The problem was solved! Mild to Wild had
never intended to bring this bracket to market--until they realized just
how often Samurais came into their shop with bent mounts, torn mounts,
sheared mounting bolts, and even split transfer case housings. Their
customers were begging for them to make more mounts to sell, so
considering all the testing the original mount had backing it, that's
exactly what they did.
Even with standard aftermarket reinforced transfer
case mounts (both the long and the short arms), my transfer case was
always plagued with problems. The mounts themselves held up fine, but
vibration caused by my steep U-joint angles combined with the torque from
my 4.89:1 transfer case caused the four transfer case mounting bolts to
back out every 1000-2000 miles, especially after rock crawling or
high-speed sand dune climbing.
At my first opportunity I ordered one of these
brackets, only to find a slight delay in delivery since the first stock
had sold out on the first day! Upon first holding the unit in my hands, I
immediately got a sense of quality. First, this thing is much heavier than
the reinforced bracket I previously owned. This is due to the fact that
the bracing is really thick, and the additional bracketry is made from
quarter-inch steel! Second, the quality of the welds is much better than
anything I could do. And third, this thing looks just plain cool!
Available with either a standard black-painted finish or high-tech-looking
Alumicoat, I was glad that I had chosen the latter. It looks like a part
off of a spaceship. So nice, in fact, that it made me feel bad to bolt it
up underneath "Buster" where it will get all dirty!
Installation
Installation
is very straightforward, but the mount is shipped with concise
instructions and a phone number to call should there be any difficulties.
Although the transfer case must be removed to install the new mount, a
beginner can still do the installation. To make removal of the transfer
case easier, unscrew the shifter knob beforehand. Make sure you disconnect
the three drive shafts and the speedometer cable.
Once you unbolt the long and short transfer case
brackets from each frame rail, you can carefully maneuver the transfer
case to allow first one and then the other mount to clear the frame.
Carefully lower the t-case to the floor. One person can do this, but you
must be careful not to let the case slip and fall onto your head or chest!
Once you have the transfer case out, inspect the housing, mounts, and
bushings for any damage.
Carefully unscrew the four bolts that attach the
long arm to the housing. Thoroughly clean the seven bolt holes that the
new bracket will use with liberal amounts of WD-40. Then position the new
bracket on the case so you can loosely thread the four stock bolts into
their normal location. This will allow you to thread the three supplied
bolts into the holes around the rear output flange. The fit will be tight
because the mount is designed to be very close, but all Mild to Wild
mounts are installed and tested before being shipped to guarantee their
fit.
Once all the bolts are loosely threaded, evenly
tighten them until all are at 20 foot-pounds of torque. After inspecting
the stock rubber bushings for any tears, reinstall them on the new bracket
before positioning the transfer case back underneath the truck. Bolt the
transfer case brackets back onto the frame, reattach the drive shafts,
speedometer cable, shifter boot and knob and you should be done. You
should not see or hear any additional vibrations or noise during a test
drive. Should you notice any vibration developing, be sure to check that
the bolts are tight. You will also want to periodically check the torque
on the transfer case bolts, a normal procedure for parts that have been
powder coated.
Impressions
This
is one seriously beefy component. Its heft attests to the strength and
stability it adds to my driveline, which helps my confidence on long
4-wheeling trips away from civilization where I will no longer run into
problems with the transfer case mounts. Also, it looks so cool and shiny
under the truck; it's a sin to hide it under a belly pan skid plate.
With my old transfer case mount, I always used lots
of lock-tight on the bolts and carefully over-torqued them to try to
reduce the frequency of removal and retightening. With this new mount, I
followed the included instructions. So far, no bolts have backed
themselves out, but only time will tell if this problem is solved
permanently. I suspect it will be, since the four standard bolts are less
stressed than before and subject to less vibration.
Although at $129.00 (or $149.00 including a
reinforced t-case short arm) it is more expensive than other aftermarket
transfer case mounts, it is plainly obvious that no corners were cut with
the design and construction of this mount. In talking with Rick, I found
out that the mount's additional bracketry and the time involved with its
assembly necessitate the cost. For most users, it is worth the minor
initial investment for the peace of mind that comes with the elimination
of common problems and the possibility of cracking the housing on that
$1,200 transfer case miles from the nearest pavement.
For Mild to Wild Suzukis, the saying, "Race on
Sunday, sell on Monday," definitely applies. Having proved the
durability of their transfer case mount in one of the toughest racing
series on Earth, it will undoubtedly hold up to just about any punishment
anyone could put it through.
--Geoff
Beasley
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