I agree that is way high unless you are doing maintained trails (dirt roads). Stock Series low first is 41:1 and I was always slipping the clutch and hopping from rock top to rock top with a lot of suspension stress. For 10 years I had a wide ratio gearbox installed that gave me a low first of 70:1 at the axle. For the kinds of driving I do that was way too low. I think I only needed it a couple times. And I had to switch to cable linkage to keep the engine from jumping because I could not hold the throttle steady enough.
For the kinds of driving I do, I figure the range between 50:1 and 57:1 is the low first sweet spot (33.3 inch dia tyres). I'm currently at 50:1 and it works very well for me. But I'm more of a rough terrain expedition trail type driver and not a serious rock crawler type.
That's a BIG jump between low first and second. Unless you are doing some extreme rock crawling I'm going to guess that you won't be using low first a whole lot and low second will become your primary low gear.
Good luck with whatever you end up with!
Agreed. My new crawl ratio with the 5 speed is 39:1, and it's a little high. It helps that the engine has plenty of power. I had no problems last weekend on roads that could loosely be described as roads. Fairly difficult logging roads. But I know it'll suck in any kind of "extreme" rock crawling.
Personally, I'd rather have an 80:1 first, and just use 2nd more often. "Too have and not need, rather than need and not have."
I think my plan, as funds allow, would be to change the LT230 High range ratio to 1.0, then drop the axle gearing. Say going to a 4.12 would get me nearly the same high range ratio overall, but now first gear low would give me 45:1. A little better...
But now that I look at the numbers... hardly seems worth it.