Driveshaft Shop 650HP 3" Aluminum Driveshaft These are our 3" aluminum drive shafts for the Eclipse and Talon. This
shaft is designed to replace the first 2 shafts of the factory 3-piece
system. They are made from 6061-T6 aluminum and 3" in diameter, it also
includes a custom 7075-T6 aluminum plate to convert the CV back to a
u-joint style end and bolt to the factory rear shaft section. The first 2
pieces of the stock shaft is 22lbs and our single is only 12lbs. The
aluminum shaft is also more torsional than the shorter steel shaft and
will help save the rest of the drivetrain from the harmful shock factor
of launching the vehicle at the track. We were going to try to make a
single shaft but due to Critical speed limitations it would need to be
4" in diameter and would not fit under the car and also the operating
angles would not allow for a 1-piece shaft to work. The front angle was 2
degrees and the back was 7 degrees (not good), the problem is the rear
joint would move more than 2 times as much as the front and cause a very
nasty vibration. The AE-7 manual of Automotive engineers doesn't
recommend any driveshaft to have more than a 1 degree difference from
one operating angle to the other (this would be a 5 degree spread). Some
of the carbon fiber shaft company makes this shaft but the angle
problem still remains and in our opinion will cause the fiber to tear
over time and fail. This shaft is rated for 650HP and comes complete
with a conversion plate for the CV end and all hardware to make this a
job that can be done in the garage.
This product was added to our catalog on Wednesday 01 June, 2011.