StaffAllpar HomeMore NewsCarsTrucksUpcomingRepairsTest drives

Chassis cab upgrades

by David Zatz on

The 2015 Ram Chassis Cabs now boast an optional high-durability vinyl seat for severe duty cycles. This exclusive new Tradesman option, also available on Heavy Duty pickups,  comes with a “Ram Work Grade” tag.

Ram Chassis Cabs with the 6.4-liter Hemi engine can now be speed-limited to 60, 65, 70 and 77 mph, for higher fuel economy and safety (the National Fire Protection Association requires a 77 mph limit on its emergency vehicles). Diesel chassis cabs have had these optional limits since 2012; this is the first year for gasoline engines. Ram claims that GM and Ford’s gasoline-powered chassis cabs do not have the feature.

Also new for 2015 is an optional rear parking sensor for upfitter installation (requested by customers), complementing the backup camera. The trucks can also now be ordered with up to four keys.

Several Ram 4500 and 5500 Chassis Cab models will get increased  payloads.  A new Max Payload Package on 6.4-liter Ram 5500s was made possible by a new torque converter on the Aisin AS66RC transmission; it raises GVWR to 19,500 pounds on all but 60-inch wheelbases (19,000 lb). The gross combined weight ratings increase to 26,000 pounds. These trucks will have a 4.88:1 rear axle ratio.

The standard Gross Vehicle Weight Ratings will increase on all 160-inch wheelbase Ram 4500 and 5500 Chassis Cab trucks — by 500 lb on 4500 models, by 1,000 lb on gasoline-powered 5500 models, and by 250 pounds on diesel 5500s.

David Zatz founded Allpar in 1998 (based on a site he had begun in 1993-94), after years of writing reviews for retail trades. He has been quoted by the New York Times, the Daily Telegraph, the Detroit News, and USA Today. Before making Allpar a full-time career, he was a consultant in organizational psychology. You can reach him by using our contact form (much preferred) or by calling (313) 766-2304


Back to the Chrysler 100

Kidde fire-extinguisher recall and Ram RVs
mack engine
Silver Mack

More Mopar Car
and Truck News

Some popular Allpar pages





Dodge Demon

2018 Wrangler JL



Staff details/contactsTerms of ServiceInformation is presented to the best of our knowledge. Plans change and sometimes mistakes are made. Decisions or purchases made based on this site's verbiage or images are done at the reader's own risk. Also see the Allpar News archives, 1997-2008 • Copyright © 2008-2017, Allpar LLC. All rights reserved. • Mopar, Dodge, Jeep, Chrysler, HEMI, and certain other names are trademarks of Fiat Chrysler Automobiles.