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The aluminum drive shaft doesn't give you any more horsepower - what it does is allow you to use what you have more efficiently because the engine doesn't have to work as hard to get things going. The stock driveshaft is pretty heavy, and the aluminum I think was about 18lbs (can't remember for sure) but it takes a lot of the rotating weight out of the assembly. The thing I noticed was that the car actually felt "lighter" on acceleration. And it did improve things greatly. I went out the next weekend after installing it and posted a new personal best at the track, shaving almost 0.2 off my time.
It is a performance gain, not a horsepower gain.
Oh I knew it wasn't a HP gain, I was just looking for any kind of gains. And you answered that with a 0.2 drop in time and the car feeling lighter. Did it rev a lot quicker with the weight being dropped? What about your MPGs, any noticable change there?
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2007 SS Mustang V6 Premium
Gray Leather Interior, Manual, V6 PP, Interior Upgrade Package, 35/20 Tint, 14inch Shorty Antenna, Silver 17" Bullitts, GT Spoiler, GT M/T Muffler, CF dash, SR Window Louvers, Roush Retro Knob, Magnetic Blackout Panel, Bullitt Style Fuel Door, Shaker 500, And Some Sweet Mustang Floor Mats! Also had a Carbon Creations OEM CF Hood with Roush Louvers but they went up in flames along with my house on Nov. 4th 2008
What changes to the rear end / trans output are needed to change to a aluminum driveshaft?
I "think" it's a direct swap but I'll let them answer that...
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2007 SS Mustang V6 Premium
Gray Leather Interior, Manual, V6 PP, Interior Upgrade Package, 35/20 Tint, 14inch Shorty Antenna, Silver 17" Bullitts, GT Spoiler, GT M/T Muffler, CF dash, SR Window Louvers, Roush Retro Knob, Magnetic Blackout Panel, Bullitt Style Fuel Door, Shaker 500, And Some Sweet Mustang Floor Mats! Also had a Carbon Creations OEM CF Hood with Roush Louvers but they went up in flames along with my house on Nov. 4th 2008
Oh I knew it wasn't a HP gain, I was just looking for any kind of gains. And you answered that with a 0.2 drop in time and the car feeling lighter. Did it rev a lot quicker with the weight being dropped? What about your MPGs, any noticable change there?
I didn't notice any MPG change, but I really didn't check it either. There could be some though with all the rotating weight off the car but it must not have been enough to make me take note of it.
It does rev up much quicker because the engine doesn't have to work as hard to get the driveshaft and car moving, the acceleration was completely different. I hit the expressway right from the shop that put it in for me and after getting on the highway ramp and driving normally it hit me that I was passing everyone. I looked down and I was doing about 85 and just didn't realize how quickly I got up there. The other side benefit is that I got rid of the vibration that the stock shaft had.
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Xcharger #020, J&M LCA/UCA; 8.8/3.55 & LPW cover; Dual GT500 take offs. Black bullitts. Shaftmaster aluminum DS. PB: 13.60 @ 100+ juiced - Xcharger: 13.42 @ 101
On the Shaftmasters drive shaft there is nothing else needed and it installs very easily. Bolts right in. Just use Loctite on the bolts. Quality workmanship and smoothed out a vibration that I had on my car at 72-73 mph. Stock weights 30 lbs. and aluminum is about 17-18 lbs. Been running it now for 2 years and am very glad I got it. Plus if you have an 05-early 06 you get the shaft with no lock-rings on the universals. Piece of mine for me.
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White 2005 V6 coupe w/automatic. FRPP M5230V6 dual exhaust. VMP cai w/VMP 93 mileage tune. Shaftmasters 4 in. aluminum driveshaft. 8.8 T-Lok w/3.55s. 17x8 in. black FRPP Bullitts w/Pirelli 235-55s. 14.65@93.58
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.. "Sally" is getting "balls" ...forged V8 swap in progress 
