I had a little wobble, I changed and went to clutch alt pulley, less vibration, still al Little wobble
I purchased a new dampner ,028-105-243 T 63.40
Removed the V-belt for the p/s, Not needed here
Installed new Dampner with ARP 12pt 8x 45 Bolt's,torqued to 15 ftlbs
perfect, smooth as can be
The old dampner original rubber was cracked in various places
Gee-Bee
Sometimes you get a new harmonic balancer out of whack too. I've seen them shimmed a little to remove the wobble on occasion, but most often you need to exchange them for another new one when it happens.