My initial impressions of the gears were muddied by a set of rebellious
injectors that had idle surging, and the engine noise blaring
from the disconnected shifter boot. However, with those issues
dealt with later, I began to experience the smoothness of the
kit, as well as how quiet it is. Since then I have had zero problems
with shifting, and only notice a slight whine or hum when in Low
range. The operation feels factory, and is a testament to the
quality control at Tera.
that the teralow kit offers can be summed up in two ways: control
and reaction time. The change to the 3.07 has made a tremendous
difference in both of these factors. Obstacles can be approached
slowly and are finessed over rather than being hit with momentum.
This makes for a far superior ride in smoothness, as the truck
seems to ooze over rocks, ditches and other obstacles. Only a
very light feathering of the throttle is needed now to pull up
onto and over formerly frustrating ascents. What a change this
is from simply slamming into things!
allow a gentle initial contact followed by easing one or more
tires against and up the form. I particularly found this helpful
when approaching a steep rock face or hillside that required a
lead tire to bring the front end up so as to avoid mashing the
bumper. The truck eases up, and seems to beg for a hand throttle
to fully take advantage of the new gears' mild mannerisms. In
the same way it also eases down descents in a way I have only
wished I could do in the past. What a change!
On the latter
note, reaction time for obstacles and other trail driving decisions
is substantially improved with the addition of the Tera gears.
Things seem to happen in slow motion and I find myself almost
having a leisurely air in observing, anticipating and initiating
each new contour or contortion in the landscape. Whether on rock,
dirt or snow this advantage is tremendous, making for better judgement
calls, less freaking out, and, ultimately I suspect, less carnage
from throttle and indecision.
while these changes are not the equivalent of a Marlin Crawler,
they constitute a fraction of the price of such overhauls, and
yield very respectable crawl ratios (see chart). The teralow
will provide plenty of slow going or rockcrawling up to the point
where IFS is not going to cut it anymore. This is one of the reasons
why they are an ideal upgrade for the Isuzu enthusiast. With locker
options and 6" or more of lift, we have up to this point
lacked mostly in front end articulation and low gearing. One down,
and one to go!
The Tera 3.07
Low Range kit is available for virtually all Isuzu 4x4s. Tera
has been aggressively making the gears available for the earlier
models such as the WomBAT, and has shown their commitment to our
line of trail-ready trucks. Isuzu enthusiasts need take note,
as Tera is clearly here to stay in serving our aftermarket needs.
With Revolver shackles and the Low Range kit they can help you
But that is
not all. Tera has recently announced that they will be filling
another critical gap in our upgrade options. Starting in early
summer 2002 they will be producing 5.38 differential gears for
the 10 and 12 bolt Isuzu axles! This is a fantastic improvement
(see chart) over the (hard to find) 4.77 gears offered with the
31" tire package. This new release will make Tera the only
stateside producer of aftermarket differential gear sets for our
trucks. Hats off to Mark Falkner's company for standing behind
our badge. With these fine products they are making it easier
for us to venture where no Zu has gone before!