360 Balance Question

Thank You for the quick reply Mike. I plan to rebuilt the suspension this holiday weekend and then get the wheel balance and alignment checked out. It could be a problem with the 32 year old suspension parts or something else. It could also be the trans mount or engine mounts, the trans mount hasnt been changed but I think the engine mounts are solid ones. What engine and tranny mounts should I try if the suspension upgrade doesnt fix it?