aluminum gold-fusion driveshafts the gold-fusiontm series driveshafts ... trans yoke not included pro-mod driveshaft assemblies 39050 39870 39045 the latest ... development for an ultra-strength driveshaft is the mark williams enterprises 6k ... series driveshafts the key to obtaining strengths greater ... are designed to be mated to the cross-drivetm rear companion flange drive system the ... new cross-drivetm system increases the failure strength ... torque and applies the torque to the drive flanges verses 1/2 of the rear flange ... for 6000 foot pounds torque the cross-drivetm system improves the shaft balance ... taking place with pilot diameters the drive lug system is indexed with one wide key ... 6 point jet nuts for easy removal the driveshaft materials are 3-1/2 4130 heat treated ...