I researched that a little and found that quite some people were complaining about poor fit (gearbox too high and/or having to rework the mount a little for clearance) and poor insulation (although maybe that was the ppl who didn't clearance it). furthermore I could see that vibratech has 3 different sizes in their offering?

another point i've been wondering about - how about the drivetrain damper, coupler assy, intermediate shaft coupler bearing? do these usually go bad a lot and/or is there any useful uprated alternative? as far as i can see, the 4x4 Cossies have the same drivetrain layout with the 2-piece shaft and the coupler assy even has the same P/N 6518778 ?