In my experience, the T5's used behind the 6 cylinders have the .76 overdrive ratio. The 4 cylinder models have the .86 ratio.
Easy enough to figure out:
Hold engine at 3,000 RPM in 4th gear, shift to 5th, RPM will drop to around 2,280 with the ,76 5th gear ratio.
Hold engine at 3,000 RPM in 4th gear, shift to 5th, RPM will drop to around 2,580 with the ,86 5th gear ratio.
The three T5's I blew up all had the .76 5th gear ratio, which is steep if you are borderline on power band/tire size/gear ratio.
I'll check my green Scrambler and see what the ratio is.
This has been a great story. Glad to see your living your Srambler. I've done a few drive adventures, but do the truck and trailer rescues, so at least I know my truck will run well. I would do a fly and drive though. Great story and great rig, congrats.