Driveshaft options

NClewis

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Hey all, I've been looking at one piece shafts, and am torn between 3. The one from DSS, shaftmasters, or dynotech. I know dynotech and shaftmasters are talking up their new and improved designs, I was wondering if anyone on here has their new one? What do you like and dislike about it? I know they've all had their own respective issues. Price wise, I've found them for all around the same price within 40 dollars. Any insight is appreciated.
 

i am ryan

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http://www.s197forum.com/forum/showthread.php?t=30272

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Wes06

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actual physical wrenching or trouble shooting by you.

It is not for discussion of which part to buy or what exhaust sounds best.


that
 

Pentalab

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I'm curious if there are any suggestions for a 3.5" driveshaft that's easy to install and didn't create more vibrations.

I use the 1 piece 3.5" aluminum DS from DSS ( they rate it for 900 hp). It has a CV joint at the axle end. The previous DS I had from shaftmaster's didn't have the rear CV joint.

With the CV at the axle end, pinion angle is non critical. The DSS-DS was installed on my 2010 auto, with the small M90 blower etc. Zero vibration on the hwy at 137 mph....and zero vibration at 156 mph on the dyno.
 

NClewis

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I use the 1 piece 3.5" aluminum DS from DSS ( they rate it for 900 hp). It has a CV joint at the axle end. The previous DS I had from shaftmaster's didn't have the rear CV joint.

With the CV at the axle end, pinion angle is non critical. The DSS-DS was installed on my 2010 auto, with the small M90 blower etc. Zero vibration on the hwy at 137 mph....and zero vibration at 156 mph on the dyno.

Did you have any issues with the shaftmasters unit? Was it the one that needed a different pinion flange?
 

808muscle

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I use the 1 piece 3.5" aluminum DS from DSS ( they rate it for 900 hp). It has a CV joint at the axle end. The previous DS I had from shaftmaster's didn't have the rear CV joint.

With the CV at the axle end, pinion angle is non critical. The DSS-DS was installed on my 2010 auto, with the small M90 blower etc. Zero vibration on the hwy at 137 mph....and zero vibration at 156 mph on the dyno.

Same deal here. Zero vibrations, no pinion angle BS either. Get the DSS.
 

NClewis

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Same deal here. Zero vibrations, no pinion angle BS either. Get the DSS.

That's the only thing I didn't like about the shaftmasters, they're saying the pinion angle has to be at 0*, only thing turning me away from DSS is the cv joint, and how strong it is, and if it'll wear out and start getting slop like every other cv joint known to man.
 

BMR Tech

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I am a fan of the Shaftmasters pieces I have used, and my customers give me excellent feedback.

I chose to use them on my current car (2015 Mustang) that is heavy, and makes big power. It has held up well thus far. I also assisted them with the development of the S550 shafts, and I was impressed with the process.

To add, I am using the Shaftmasters without a CV.

The S550 driveline angles are all kinds of fubar.

Thus far, no NVH up to 160 on track or dyno.
 
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TGR96

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I have a DSS one piece aluminum, and I guess I dig it. My drive train is stock otherwise, and I'm not sure if it was money well spent. I was hoping for a little quicker engine spin up due to less rotating mass, but from the seat of the pants, I can't tell a difference from stock. I do track days with the car (road course), so I trust a one piece DS more than the stocker, though. No vibration issues and I'm sure my pinion angle is off, since I haven't installed an adjustable UCA yet.

If you are pushing big HP, you will probably see a bigger benefit from an aftermarket DS.
 
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NClewis

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I have a DSS one piece aluminum, and I guess I dig it. My drive train is stock otherwise, and I'm not sure if it was money well spent. I was hoping for a little quicker engine spin up due to less rotating mass, but from the seat of the pants, I can't tell a difference from stock. I do track days with the car (road course), so I trust a one piece DS more than the stocker, though. No vibration issues and I'm sure my pinion angle is off, since I haven't installed an adjustable UCA yet.

If you are pushing big HP, you will probably see a bigger benefit from an aftermarket DS.

Right now I'm feeling a lot of play in the carrier bearing, so that's what started me wanting to replace it. I do an occasional drag pass, and while I'm not over 400 hp, it's still going to be good insurance. I'm still a little off about the cv joint lasting over time in the DSS
 

rebus

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That's the only thing I didn't like about the shaftmasters, they're saying the pinion angle has to be at 0*, only thing turning me away from DSS is the cv joint, and how strong it is, and if it'll wear out and start getting slop like every other cv joint knowns to man.

The DSS uses a Porsche 917 CV. It is larger than the stock CV.
 

Pentalab

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The DSS uses a Porsche 917 CV. It is larger than the stock CV.

Agreed, and if u do manage to break it..it's field replaceable for $100.00

One too may horror stories with shaftmaster's DS on 05-14 cars. I know of several that could no way, shape or form, get rid of the vibration, even after tweaking the pinion angle several times via an adjustable UCA. All they ended up doing is shifting the mph speed at which the shaft would start to vibrate at. Sure some would tweak the pinion angle, then vibration was gone, from 0-100 mph..then 3 months later, they report back the shaft vibrates at 120 mph.

The only SAFE way to do it would be to take it to the dyno, and tweak pinion angle /dyno /tweak/dyno /tweak/ dyno etc. Keep doing that till the vibration starts up at a speed well above what you intend to drive the car at.... or doesn't vibrate from 0- 160 mph. You have to start with pinion angle XXX, then increment in .1 deg steps..... pita.

Shaftmasters + automatic = bad news. And real bad if you have a 2010 automatic. If you are paying someone to tweak the pinion angle, you will go broke in the process....or get busted by cops for speeding.

The DSS-DS is plug + play.
 

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