[Old57]

It's been a bit since I had time to check out the forums. I haven't had the truck out as much as I'd like due to ice and with salt being put on the roads. Today it got up in the 60's, so I got it out a little bit. It was the first time that I got out on the highway with the NV4500 overdrive transmission. I'm turning about 2150 RPM at 70 MPH, which it great for the big block. I had a pretty hard drive line vibration at 60 to 70 MPH, so I rechecked the drive line angles when I got back. When modifying the transmission mount for the swap, and the shackle lift on the rear, I'm off 2 degrees. I ordered different shims this evening, so I'll get those changed when I get the new ones, and test it out again.