You personally may not like 5.13 or even the extremely commonly used 4.88 but your worries about 5.13 are the very same worries and claims made by some when 4.88 first came out for the Wrangler axles. And we all know those claims and worries about the 4.88 gears were ultimately proven to be completely unfounded as self-evident by their many years of ongoing problem-free use. I personally have been using nothing but 4.88 since probably 2002.I've seen contrary. But, that's just my experience YMMV
This is just a 4.10 next to a 4.88
View attachment 11357
And I'm not even comfortable with 4.88
But again...that's just me. You be you
5.13 was extensively tested in places like Johnson Valley (toughest wheeling in the US) by Revolution Gear well before they were released for sale. Circle K is who makes them for RGA and they are widely known as the very best manufacturer of R&P gear sets. And OF COURSE the pinion gear is going to be smaller with lower ratios, that's just how things work, but that in no way means 4.88 or 5.13 are not up to the job.
The bottom line is that your claims about 5.13 not being strong enough are completely and totally unfounded. 5.13 is already well proven in our axles including the Dana 30 and hardcore offroaders are not having any trouble whatsoever with them. Ask @mrblaine, he is well aware of the testing history of that ratio, I believe he was somehow involved in its testing.
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