The more I look at the chart, the more I just have to say how much total BS it is.
The #1 limiting factor when rock crawling for factory vehicles is ground clearance. Yet the FJ Cruiser does better on rocks with a manual tranny than it is does with an auto, based on crawl ratio I guess. What good does crawl ratio do if you are high centered.
For rock crawling you also have to give extra credit for SFA vehicles as it does help. Where you got the RTI figures for all these vehicles is beyond me, but you can't produce any vaguely meaningful results without it.
What you chose as an optimum wheelbase for rock crawling would obviously also be somewhat subjective.
I've never seen a vehicle not make an obstacle due to crawl ratio, so if you are just looking at numbers, it becomes almost irrelevant. For stock vehicles torque becomes kind of irrelevant to an extent too.
A lot of the time it will simply come down to approach/departure/breakover angles, clearance and articulation/flex.
Now I feel dumb, wasting my time replying to a waste of time chart
