A sign of things to come (40.4 Jeep)

[MallCrawlinBranco]

Pretty obvious... they dropped a ".", its supposed to read 40:4. New wrangler is going to have a 10:1 rear axle ratio. A ring gear the size of a small child and a pinion the size of your pinky.

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[Stilbukn]

I think the most likely item is 35" tires with a 40.4" departure angle

You got it - the Extreme Recon - This Wrangler-from-the-factory with 35s is capable of some impressive stuff thanks to its industry-first 100:1 crawl ratio when owners specify the optional 4.88:1 axles. Xtreme Recon improves other specs, too, including best-in-class approach angle (47.7 degrees), departure angle (40.4 degrees), ground clearance (12.9 inches), and water fording depth (33.6 inches).