shelooga

ive read a lot of conflicting info saying that the only mustangs that have a 'flaw' in the DS are the 2005 and 2006s. however i could have sworn that video of the DS exploding was on a 2011+ model year.
so q 1 is other than the stupidity factor, is it ok for me to cross the 120 threshold?
q2, has anyone with these new aluminum ones from Shaftmasters tested its top speed or near enough?
q3 i assume because of the weight saving over steel, theres a small if not noticeable gain in power or the ability to conserve power when spinning these things, can anyone comment?
q4 lastly, will it eliminate the vibration i get around 100 in my car even if the aluminum ones still cant do 120? that alone may be worth it. it cant be good to get that much vibration feedback

JimC

The 2005 Mustang had a different mount for the driveshaft, and the "clips" failed on the dyno for a couple. Starting in 2006 Ford upgraded and it was no longer an issue.

The 2011 that had everyone talking was a guy who removed the speed limiter on his car, ran it up to 135. The first time he did he lifted and heard "something" but continued driving the car with vibration. Ran it up to 135 and it came apart. That got everyone thinking that there was some major flaw on the highway - no there was a major flaw in that one car located between the steering wheel and the back of the driver seat.

Other driveshafts failed on the dyno. Shaftmasters did a study and found the manner of dyno testing was part of the problem. Similar to the video, run it up to a high speed and simply lift caused a vibration issue. Shaftmasters made a change in their aluminum driveshafts to compensate.

I have the 4" Shaftmasters on my car. Many many Many track visits on it with passes at 108+ with no issues.

audioAl

In a passing of two slower cars, I reached 105 mph with no vibration. Since
then I have reached 117 mph, no vibration, car handles great, what a Pony!

crazyassracer

I've had a few visits to 130, and hundreds of trips over 110mph with my stock DS.
No problem... yet.
Would like to get one of those aluminum ones some day.

Derf00

said issues are on 3.7L mustangs. nothing else.

crazyassracer

I believe you are wrong. 2005's had peened joints instead of clipped. They started the stories of bad DS falling apart at high speeds.

audioAl

Interesting thread, the lightweight DS is an upgrade in my opinion, but it's very expensive
and the weight isn't much difference in the V6.

Derf00

Have you found any evidence of 05-2010 DS's failing? I haven't heard of one and the only thing you will find on is about 3.7L failures, both OEM and Shaftmasters which has already revised their design.

Site your source(s) please.

crazyassracer

google "drive shaft fail 05 mustang"

I said they started the stories. Never said I could prove any failed.

Derf00

All that search brings up is the 2011 V6 failure... just to double check I googled "mustang drive shaft failure" same thing.

Never heard the rumor about 05+ failing. Oh well, that's why it's just a rumor.