Detailing the Wrangler JL's New Body Construction

The name of the game currently is fuel economy, and early on it was rumored that the JL would switch to a full aluminium tub, riding on a hydroformed steel frame. However Sergio Marchionne said back in May "I think we can do almost as well without doing it all-aluminum,and still meet fuel economy targets. The hydroformed frame is likely to stay as the process is already used by RAM Trucks.Allpar claims where the real weight savings will come from is changing the configuration of the JL's top. BAllpars source writes:If this comes to fruition Jeep will be able to remove a good chunk of weight needed to reinforce the lower portion of the body.