Originally Posted by 65Chevy4x4
Would running a portal to reverse driveline double the load and rpm of the front diff making it essentially weaker than stock.
H1 portals are 1.8:1 irrc. So in order to "undo" the gear reduction at the wheel, you'd have to overdrive the pinion 1.8:1, which seems like a bad idea, not to mention the weight and complexity.
Running 9" front and rear would make it relatively easy to match your ratios front to back like you mentioned earlier.