Challenger1,

Cincinnati Driveline and Hydraulics???

If you buy the 4130 kit from MW or Strange, they (Cinn driveline), will assemble and balance it for you. They do High-speed balancing, but you have to tell them up front.

Yes, they are very quick on turnaround and not over priced.

Regards, Mark

PS: I live over near the Kenwood mall...