The race prepared driveshafts from Dynotech were originally started by Andy Abraham. Andy left Dynotech a number of years ago and now works for Raven Engineering. Raven Engineering
http://www.raven-engineering.com/ does build race driveshafts. MPR is also a distributor for Raven driveshafts.
Raven 4 inch aluminum driveshaft for my 2012 CJ stocker.
