Finally got that damn vibration out of the drive train. I decided to pull both drive shafts and have them balanced. I had .017" runout on the rear shaft so we cut one of the yokes off and welded it back on true. I took the cast yoke and machined it true to help with the balance also. We couldn't get the shafts up above 1700 RPM without one hell of a resonance frequency (critical). I had the truck up to 120 mph tonight and it's smooth as can be except for the tire balance which I'll take care of next. I still have the noise I discussed in another thread and the front pump in the tranny is still whining a little when it get's hot. Oh, and I threw a cam position sensor code right after I got my inspection sticker when I hooked the alarm back up. The truck runs awsome but I still have some tweaking to do like maybe raise the front up another inch. The front air dam hits every pot hole and crevis in the road. LOL Thanks again to everyone's input to help me through this kick ass little project.
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