What I've seen is 0% for 36 on wrangler and gladiator, and it goes up depending on the terms.
Or a big discount, but not both. You'd probably be better off buying with the discount and financing through a credit union if you have a good relationship with one. Those 0% for 84 also say "well qualified buyers", and very few probably qualify.
Just bought the wife a new 2019 Ford Flex with discounts and X plan rebates of over $6k and 0% for 84 months. To good of a deal to pass up. She thought about a Gladiator but I knew she would get tired of driving one every day.