This is our new Mustang 4.6 (4R70W) 950 HP 3.5" Automatic Aluminum Driveshaft , we have done extensive work on a new bonding system and have had great success with testing in both the lab and the real world. These shafs are made to order and normally will take 7-14 days to produce. this like all shafts are balanced on our new exclusive 9500Rpm balancer.