Aftermarket Driveshaft Failures

[evo8904]

I'm curious, how many people have broken an aftermarket driveshaft like DSS or Shaftmasters? I broke mine this morning when I went to launch my car at the track.

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[jvm051]

What brand and aluminum or CF?

 

[evo8904]

What brand and aluminum or CF?

Mine is an aluminum shaftmasters.

 

[Reds197]

This happens a lot. Especially on the 19-20 radials with aggressive launches. I broke aluminum and carbon fiber. It does not matter what brand they break. You need to get aluminum bushings everywhere and vikings and larger bolts to hold the differential. The diff bolts are the next thing to go out. GOOD LUCK

This is 100% the reason I sold a manual and went with a auto.

 

[evo8904]

This happens a lot. Especially on the 19-20 radials with aggressive launches. I broke aluminum and carbon fiber. It does not matter what brand they break. You need to get aluminum bushings everywhere and vikings and larger bolts to hold the differential. The diff bolts are the next thing to go out. GOOD LUCK

This is 100% the reason I sold a manual and went with a auto.

Yeah bro, I wish now that I would have gotten the auto. Just never had an auto car. I'm going to give DSS carbon fiber shaft a try next. But, everything else is solid. I have all BMR parts and I had zero wheel hop on the first pass. However, I just haven't heard of many aftermarket driveshafts breaking. I have done multiple searches. It was actually a pretty clean break at the weld.

 

[BMR Tech]

Due to the awkward driveline angles in these cars, I am of the firm opinion that once you start making substantial power with the S550, that you really need to lock the cradle in place with either bushings or OUR lockout kit, and use solid diff mounts.

The issue is, most people won't go for solid diff mounts due to the NVH.

 

[evo8904]

Due to the awkward driveline angles in these cars, I am of the firm opinion that once you start making substantial power with the S550, that you really need to lock the cradle in place with either bushings or OUR lockout kit, and use solid diff mounts.

The issue is, most people won't go for solid diff mounts due to the NVH.

I completely agree. I had zero wheel hop with all of my BMR parts. Once I dropped the psi on my tires, it hooked even with NT555Rs. But a little too much for the driveshaft lol. The BMR loop did it's job really well. My MGW didn't get banged up at all.

 

[Obsol3te]

Shit man, glad everything's ok(aside from the DS of course).
Are people sheering the stock DS up pretty often? I wasn't thinking i'd need to touch the DS as of yet. I wasnt planning on running a Drag Radial though when the time comes.
Too many horror stories, and i've used bias ply's in the past, so im fine with them.
Blagh, neverending money pit I was planning on clutch, half-shafts, tires (in that order) and I was going to go have some fun at the strip. Now im worried about the dif cradle and the ds

 

[Reds197]

I had better luck on a true slick than 20" radials. Even with a much better (1.53) sixty the driveshaft was fine. Its not the hook that breaks the shaft its the small hop on a stiff and short sidewall and then the diff starts flexing.

 

[evo8904]

Here are some pics.

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[Reds197]

Did you get in any passes before it broke?

 

[evo8904]

Did you get in any passes before it broke?

Just one:(. I babied it on the first pass, had my friend in the car with me and was shifting between 6500-7000.

 

[evo8904]

I will try to edit the video of when the shaft broke.

 

[mustang_guy]

Try pst instead of DSS. I find them to make a better shaft. PST requires you to take a measurement, with whatever your current suspension modifications are so its custom fit to your car and set up.
http://www.pstds.com

 

[evo8904]

Try pst instead of DSS. I find them to make a better shaft. PST requires you to take a measurement, with whatever your current suspension modifications are so its custom fit to your car and set up.
http://www.pstds.com

Thanks bro! I am buying jmeo's carbon fiber DSS. The price was too go to pass up. If that one breaks then I will go with PST. Maybe get one of their steel shafts lol.

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