broke driveshaft imco ext box?
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broke driveshaft imco ext box?
Has anybody broke a driveshaft in a imco ext box.I will be putting 1200-1300hp thru it. Im just worried about the extra length shaft being weaker then a short standard shaft.
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and thats with extension boxes and the longer driveshafts. as long as you keep the u-joint and coupler well greased you shouldn't have a problem. Its not a common breaking point. Most guys will have drive gear failure long before seeing the driveshaft break.
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Before upgrading to XR shafts, I did break a std u-joint(1.077cup) IMCO shaft right in the middle where the old shafts tapered to a pretty small diameter.
The new XR shafts are a lot beefier, with no taper. As mentioned, probably not a weak link.
With that said, when I broke my port helmet in Oct(picts on pg4 of the broken transom plate thread), I did however bend the XR shaft. I mounted an old gimbal bearing in a vice and spun the shaft in it, and the splined end has at least 1/2" of run out.
LE
The new XR shafts are a lot beefier, with no taper. As mentioned, probably not a weak link.
With that said, when I broke my port helmet in Oct(picts on pg4 of the broken transom plate thread), I did however bend the XR shaft. I mounted an old gimbal bearing in a vice and spun the shaft in it, and the splined end has at least 1/2" of run out.
LE
#9
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I was told at one time to make sure there are no nicks in the shaft, causing a weak point. But I have not heard of any failures. I just installed the new one for the SCX and it is a beefy unit.. I wouldnt worry about it.