Billet input shaft is the back bone of your Dodge Cummins transmission.
It is the first hard part to bring power into the transmission
and transmit that power to the wheels. With no dampening or
power loss other than the torque converter, the input shaft
has a lot to handle. Now add power, weight from a trailer, bigger
tires (and is some cases all these things together) and you
will be well beyond what that factory shaft was designed for.
The theory behind
billet shafts is not quite what you may have in mind. The
key to success is not to make the shaft "stronger"
necessarily, but give it the ability to absorb more torsional
load. The way we do this, is by using billet shafts, they
have the ability to rotate further with out breaking. This
is going to give the transmission more "give" and
allow it to transmit more torque and more load with out breaking.
Along those lines,
breaking an input shaft can be catastrophic to your transmission.
Sometime when the shaft breaks, your truck will simply stop
moving and it needs a new input shaft. Other times, when that
shaft breaks, it can take out your torque converter, front
pump, and front seal as well. Obviously this is going to be
a very costly repair. Then add on top of that labor time,
fluids, new gaskets and seals, and you can quickly see how
this can add to the cost fairly quickly.
It is simply good
insurance to hold reliable power in your transmission, to
add at minimum a billet input shaft.
to handle high power applications
way to help ensure you transmission does not break
RETURN POLICY: ATS requires a 25% restocking fee on
any returned item. This is something at Thoroughbred Diesel
we have no control over but ATS enforces everyone to charge
a 25% restocking fee on any return and we like to be up front
with our customers.