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5 spd vs 8 spd
4.10's standard vs 3.23's standard
Both have basically the same size tire (255-75 vs 265-70, oth 17's, both just shy of 32" tall)
But the biggest reason?
Huge concentration on aero on the Ram, claimed cd as low as 0.36.
The JK? cd of 0.495 and 0.50 are what I'm finding online.
My 01 Wrangler was even worse. 0.58 cd, and a 3 speed auto. At absolute best I could eek 17 mpg from it. Typically it was a 14-15 mpg ride. With trailer in tow I managed a lot of sub-10 mpg tanks. A friend with a Dodge diesel took my trailer to a race in Utah once with me, managed nearly 19 mpg, with way more power too. Made me sad for myself.
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