Having bought one before I'd never recommend upgrading to a semi float 60. You don't really gain much. Still will bend flanges. Go pr44 front and stock rear or 60/60... Or 60/80. Went through that whole sequence in my JK lol. JL will only get one set when they get swapped eventually.
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Couldn't agree more. Having run a semi-float 60 in the past, I can affirm it's not worth it. Go full float for sure.
Wow. You all are awesome. Great info. Is there a big difference in drivability because of the weight of the 60's?. My guess is that the extra weight is unsprung weight and it probably won't be much difference. But I'm not sure. Also what gearing would you run with 37's? What if I later wanted to upgrade to 40's? Thanks.
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Really, the only rear drivability issue you will have with a 60 is a reduction in turning. If you get something like the Dynatrac XD60 with Pro 1550 knuckles, it'll be a LOT better than anything else out there. As far as gearing goes, the JL with it's 8-speed auto has changed everything and now, instead of just looking for what will get you the most power, you can now think about what will also get you good MPG. If you're really thinking about bumping up to 40's some day, 5.13 would probably be the minimum ratio I'd go with. 5.38's will be a bit much for 37's or at least, in my opinion.