Gears for 285's on 2nd gen

I’d go 4.56. I’m the same. DCSB 4.0 Auto. front/rear bumpers, sliders, winch, swingout, dual batteries Camper/bed rack/rtt and 4.88 was overgeared for my 285s. Bearable for round town but wouldn’t recommend.

 

Thank you! Refreshing to see someone capable of math! 4.10 will bring RPMs closest to stock with 33’s.
That what I did but I did it myself so no real cost involved and I do have power adders.
My recommendation for the OP would be 4.30 because even tho 4.10 will bring RPM back to stock it fails to account for the added unsprung rotational mass of the heavier tires and increases drag from the accompanying lift (and other possible mods).
So without power adders and no plans to ever go bigger than 33”, 4.30 gearing is the ticket.
The guys with half the 4bangers chiming in isn’t really relevant at all because they have way less power and different trans ratios already so comparing final drive is apples to oranges

 

I just regeared to 4.56 Yukon. I'm on 33's with supercharger 4.0L V6. So far it's a good match. About 200 rotation difference st 60mph witch actually closer to 64mph.