Hey all, Recently put a transmission into my truck (351, E4OD) Well now i'm having a problem with a CRAZY vibration. With the truck in the air, in drive it shakes so bad, and gets worse upon acceleration. When the truck his 100 km/hour, it settles down a bit, but it's still there. And it's a LOUD vibration too.

U-joints were bad, So I changed them. Removed the back tires, left the drums on, put the lugs on, and it STILL Vibrates like mad. In Park, there's a Little shimmy, So I tightened the converter bolts a little, and that helped the problem. BUt this problem in drive has me going nuts! Anyone got any ideas?