Pics of my broken drive shaft - LS1TECH



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Pics of my broken drive shaft

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Old 08-18-2004, 10:41 PM   #1
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Default Pics of my broken drive shaft

I had posted about my DS breaking at the track.. well I finally got around to pulling it out tonight. I thought it had broken right in the middle, but it ended up being right behind the front welds.. a really nice clean break. Can't wait until my chromoly one from AP Engineering gets here so I can kill my stock torque arm


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Old 08-19-2004, 12:59 AM   #2
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hey wat were you launching from at the track and how many runs did you get in with it before it broke
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Old 08-19-2004, 07:14 AM   #3
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Quote:
Originally Posted by 1bad99ls1
hey wat were you launching from at the track and how many runs did you get in with it before it broke
It broke on the first launch with ET streets, 12 bolt and 4.10 gears.. it just barely moved when I dumped the clutch at about 4500rpm.
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Old 08-19-2004, 07:46 AM   #4
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That's weird.I ran a factory driveshaft with 560 rwhp in a 3840 lb sled and never hurt it.7000rpm dumps on ET Drags netted mid 1.40 60's.I must of had a strong one.
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Old 08-19-2004, 07:58 AM   #5
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422 ss, was that with an auto or 6m?
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Old 08-19-2004, 08:45 AM   #6
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I split my alum DS exactly where yours broke too this past sunday. lol Driveshaft #3. I'm finally just went and got a custom Steel 3 and 1/2 Inch one made. These Alum shafts just don't like 6700RPM launches with 3750#'s behind em.
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Old 08-19-2004, 09:10 AM   #7
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Gomer,

Why don't you replace the Trq arm while your at it? I did the Trq Arm, but now I need the 12bolt and Drive shaft. BTW - AP engineering are great to work with.
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Old 08-19-2004, 09:13 AM   #8
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6-speeds are hell on the drivetrain. It's a blast to row tho!
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Old 08-19-2004, 11:01 AM   #9
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Wow that was one clean break! Thats exactly what I was worried about though, even on nittos I figured I was on borrowed time with the stock shaft. Every so often you get a few folks who seem to get a strong one, but seems like a large majority start snapping them like twigs with any kind of sticky tire. So I too can't wait for my APE chro-mo shaft to get here in a week or 2. They were very pleasant to deal with over the phone.
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Old 08-19-2004, 11:53 AM   #10
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Quote:
Originally Posted by HOSS99
Gomer,

Why don't you replace the Trq arm while your at it? I did the Trq Arm, but now I need the 12bolt and Drive shaft. BTW - AP engineering are great to work with.
Yes, I'm doing subframes and torque arm while the car is down.
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Old 08-19-2004, 07:02 PM   #11
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i busted mine at the rear and it almost fell out.


i hadnt raced it in months.gave me no warning just broke.thank god it didnt break off completely.


i didnt have **** for mods at the time either.
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Old 08-19-2004, 07:35 PM   #12
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thats the cleanest break of an OEM aluminum shaft I've seen

Most of them look like a twisted coke can haha
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Old 08-20-2004, 04:01 AM   #13
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Quote:
Originally Posted by Fireball
thats the cleanest break of an OEM aluminum shaft I've seen

Most of them look like a twisted coke can haha
Mine twisted like a coke can http://www.msnusers.com/CarsRelatedG...oto&PhotoID=15
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Old 08-20-2004, 07:29 AM   #14
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Quote:
Originally Posted by Fireball
thats the cleanest break of an OEM aluminum shaft I've seen

Most of them look like a twisted coke can haha
That's what mine looked like when it let go, a corkscrew.

Bruce
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Old 08-23-2004, 12:13 PM   #15
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what is a good drive shaft that is good and strong , and how much is it goin for?
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Old 08-23-2004, 04:39 PM   #16
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Quote:
Originally Posted by 1bad99ls1
what is a good drive shaft that is good and strong , and how much is it goin for?
I ended up buying a chromoly 3.0 inch diameter shaft from AP engineering (site sponsor). It should be VERY strong. It was $330 I belive... I ordered it last monday and I"m hoping it will be here today or tomorrow.
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Old 08-23-2004, 06:20 PM   #17
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that's strange that it was such a clean break.
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Old 08-23-2004, 06:49 PM   #18
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After breaking 3, three inch shafts (alum and steel) I went with a steel think walled 3.5" driveshaft (clears and fits perfectly). I will never go back to a 3" shaft especially after breaking 3 of them already! 6700 RPM Launch + Slicks + 3750# TA = Broken 3" shafts. The steel one did last a good 100+ launches though and finally let go.
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Old 08-29-2004, 10:10 PM   #19
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I got my 3 inch chromoly shaft from AP engineering Friday!! It is VERY nice and has no vibration all the way up to 130mph.. verified at my secret "legal" test facility I'm going to try it out on ET streets and sidestepping the clutch at 6k Tuesday night.. so far I'm impressed with it for the price.
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Old 08-29-2004, 10:44 PM   #20
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Yup, mine came in Friday too, though I was too busy to put it in this weekend. Probably will have to wait til the upcoming holiday weekend. Looks like a very nice piece, and heck, they were even good enough to write my name on it
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