88 Blazer W/ 4\" lift (Vibration) I just finished the installation of a 4" lift kit on my 88 Blazer. I used the Off Roaddesign 4" shackle flip kit and Tuff Country springs. it starts to vibrate at about 25 MPH and smothens out when I let off the gas, but starts to vibrate again when I apply power. Other then buying a new drive shaft from High Angle, is there any thing else I can do? tomorrow I will try and lower the transfer case using the 1" factory spacers. but it seems to me that this will only make the drive shaft even more inline with the transfer case which I think would only make it vibrate even more. what about a 2 degree shim installed backwards to lower the angle of the pinion yoke. Any advice would be greatly appreciated. Thaks and Aloha from Hawaii.