1 1/8 inch yoke flange from memory, and a serious set of ratios available down into the 4's.

Stump pulling stuff. Have seen a 6cyl/M22 (94/96? cluster) HJ tonner get all light on the front wheels when it had a number of cement bags incorrectly loaded right down the back of the tray (not that I had any involvement in that... ). With no load in them you second gear was preferred to start off from the lights, but with a 1:1 top gear and the stump puller diff they had a top speed of just over 130km/h, but man did they handle empty! That combo had issues with driveline vibration too, especially common issue they had was they used to spit the outer ring off the harmonic balancer as the engines were revving a bit harder than the others (weapy cork gaskets helped these along too). They needed to have the tailshaft angles set properly and well balanced too or they would chew through unis. That is why you'll still occasionally find old tonners with washers either under the box or cross member mounts, much like the early commodores with the split tail shaft we used to have to set-up with an inclinometer.

Regards,

Dave.