Here is some additional information on it for those of you interested.
It is an Awesome" piece I think.
I spent as I said many-many-many Long-Hours researching this item.
I'm satisfied with this being the Top-of-the-Line .........
It seemed to me it had to be part of the New Phase #2 changes to the "tigermachine" for 2014.
For the last 6 years we have been chasing an elusive thing, we have been
trying to make a driveshaft for the new Mustang (S197) that is not only
the strongest shaft out there, but also the most stable shaft when it
comes to dealing with the harmonic vibrations that these cars are plagued
with. In our opinion these cars were rushed to market with a harmonic
vibration in the drive train. This is very obvious as the stock 2-piece 43lb
anchor of a driveshaft that came installed in the car to help cure the
problem. For those who are not aware, the rear of the factory shaft has a
9lb steel dampener inside of the tube (see picture) helping to make it so
tremendously heavy.
Over the last few years we have tried a few different types of shafts. First
we tried a steel shaft and they had more of a harmonic vibration. We then
moved onto the Explorer/Ranger style male and female aluminum slider
shaft with decent results, but the success rate was not as high as we
wanted. We then even went as far a making our own male/female slider
that also allowed us to give you the stronger 1350 series u-joint on both
ends with a supplied pinion yoke for the differential.
Just to bring you into our world a little bit, we here at DSS go about things
a little different than
most Drive shaft companies. Most shaft companies buy the separate Shaft
parts, they put them together and send them out the door. We are a full
22,000 sq. ft machine shop and manufacture a lot of the parts that we
use, so when it comes to having trouble with a particular part we have
not only the engineering in house to review the problem, but also have
the machines to make the parts needed to correct these problems.
So going back to the slider, we went ahead and produced a female slider
and it was considerably better than the Ford Explorer/Ranger type, but
we still had some cars that had a stability problem, so we went even
further. During this time we had taken delivery of a new type of balancing
machine (show machine). This was a custom built machine that our owner
Frank had spec'd out with the company's engineers, and were told the
machine would take 3-4 months to make. Well, one and half years later
we took delivery of the machine (3/2010) and a whole new world was
opened up. Most are not aware that a balancing machine normally does
not spin a shaft at the actual speed that the shaft will be spinning at,
(click here for more about this) and to make a long story short, this new
balancer has the ability to spin a shaft at any speed we want from 10RPM
right up to 9500RPM (and everything in between). This balancer has
enabled us to see the male/female slider type shaft become unstable at
certain speeds and helped us to understand that we needed to take a
different direction to make the shaft correctly.
What may come as a surprise to some is that we actually had the CV style
driveshaft pictured in our 2009 Catalog, expecting the arrival of the new
balancer. We wanted to wait to make sure that it was as stable as we
had hoped by testing it in the new machine and that is why it was not
used before now. Some time has passed and we were not only able to
test the shaft in the new balancer, but we have given these shafts to a
few chosen, well known shops for testing. The results are in, and every
single car has been flawless. We were able to achieve exactly what we
wanted, the best balanced shaft without the problems associated with
the harmonics problems of a slider and strength without compare.
The Shaft will retain the factory 6-bolt CV mount, so we have eliminated
the problems associated with changing out the pinion yoke, and we have
supplied a plate to convert the stock rear CV flange to fit a modified
version of a 108mm CV that will be able to move in and out with
suspension movement. We didn't stop there though, the original spline
going into the 108mm CV is still a small 28 spline, similar to a C4
transmission output, so we decided to make the stub section ourselves
using a new 300M material that we have been getting out of Sweden.
This material is the same used in our record setting axles on many 8
second drag/street cars. We are also using a special boot and grease
combination to ensure longevity of the CV. This, along with the 325”
Carbon fiber tube and 1350 front u-joint, makes this the strongest shaft
available for the platform with no clearance issues.
So if you have been waiting for the best shaft available for your Mustang,
the wait is over. This is what some of the people testing this shaft out had to say about them.
for more about our Bonding method please go to out blog, it will be worth
the time to understand what we have done different.
http://driveshaftshop.com/blog/?p=546
Part Number: FDSH9-C-CV1