I have a 74 Challenger that had a 318/904, well I installed a a 5.9 out of a 2002 1500 but the thing idles great but when i accelerate it vibrates like crazy. I called B&M and they informed that they had a flex plate for the earlier magnums but not the 2002. Which way do i go now to get this thing in balance. Need lots of help anybody got any out there?

Last edited by truckinkid; 04/15/11 02:21 AM.