Duty Street / Strip
order to raise performance above the Level Two units, the input shaft/drum
and sun shell assembly
strength must be addressed. Anyone who has built serious Th-2004R Transmissions
has, at some time experienced failure of one or more of these components.
Our Level Two Transmissions parts have proven to be reliable to the torque
levels described in Level Two and our return rate demonstrates this. We
experience less than 1% failure on our Level Two units.
Once you get into these engine torque and horsepower levels above the Level
Two Transmissions, the input shaft to drum connection point becomes prone
to fracture and the spline section will start ripping off the sun shell.
Our Level Three Transmissions have the following parts added for increased
strength and reliability above 450 hp and 450 ft/lbs. of torque.
These components are specifically engineered to help prevent breakage in
applications with exceptionally stout motors. Details of these parts can
be seen at www.extreme-duty.com.
While the late model factory sun shells are definitely a big improvement,
they are certainly not up to the hard core use that our sun shells are built
for. Our Level Three Transmission includes the following upgrades from Level
Two: Heavy duty input shaft/drum assembly, the reinforced sun shell package
and fourth gear servo. These parts will live at horsepower and torque levels
over 60% greater than the stock components are able to tolerate!