Gladiator will offer two powertrains: a 3.6-liter Pentastar V-6 engine with Engine Stop-Start (ESS) and eight-speed automatic or six-speed manual transmission; and a 3.0-liter EcoDiesel V-6 with ESS and an eight-speed automatic transmission available in 2020. With so much, the same, is the Gladiator really all that different than the Wrangler? While the Gladiator also uses a fully boxed high-strength steel frame underslung with solid axles, the differences begin with a JT frame that is 31-inches longer. The wheelbase grows by 18.9 inches from the JL Unlimited’s 118.4 inches, up to 137.3 inches for the Gladiator. While that sounds long, keep in mind that the AEV Brute came in at 139 inches, the’ 05 Power Wagon was 140 inches, and the current Toyota Tacoma and Chevy Colorado short beds come in at 127.4 and 128.3 inches respectively, while their long bed counterparts are 140.6 and 140.5 inches. The extra length of the JT comes from the fact that the distance from the A-pillar to the front axle is greater with solid axles (in order to …