Model Forum / Radio Controlled / Land Models / January 2007

Matt, , just like full-size cars and trucks, these models have
differentials in the front and rear. A diff works by allowing the left
and right wheels to turn at different speeds to help steering and
handling, however, when one wheel has no load on it, it spins freely,
with the wheel with greater traction getting no power at all. In these
models, the grease or oil in the differential can limit the
differential effect, putting more power to the non-slipping wheel. I'm
not sure which the esavage uses, but there are oils and greases of
varying thickness that allow you to fine-tune this. Do a search for
"esavage diggerential lubrication" and such to see what you can come up
with. Keep in mind that it is all a trade-off, the thicker the lube,
the more the left and right want to turn at the same speed, but it also
makes the ride pigish in the turns. I had a buggy with the thickest
diff lube in all three diffs (a buggy also has a center diff, doing the
same function, except dividing the power from front to back, while
trucks like your sav have a gearbox that makes both front and read
drivelines turn at the samespeed always), anyways, when you peg the
throttle on this buggy, it went totally out of control, because one
tire would get no traction, but the outhe got equal power and greater
traction, pushing the rear end around to one side. I'm sure there are
others here that can articulate this a bit better. . .