Quote:
Originally Posted by kwmech
Nope, that's why I asked how he had the driveshaft shortened. The clocking could be off or the front section-- if shortened by itself-- may not be in balance with the rear now
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Actually it's been balanced twice (the entire assembly including carrier support). 1st time was when I had a 2004R. It didn't need a change in length but I had it completely rebuilt, new carrier bearing, U joints and balanced. 2nd time shortened and balanced (the entire assembly again) The shop has a high speed balancer setup and said it was good.
I ran it supported on jack stands without wheels, tires and brake drums. The vibration is still there. BTW: at 45 driveshaft speed is about 2K max. At 70 nice and smooth.