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I have a 2017 Laramie ED with no less than 3 axel ratios listed on the sticker. 3.21 under Std Equip, 3.92 under Laramie Package 28H and 3.55 under 3.0 Liter V6 EcoDiesel Engine. I know options overrule standard equipment so the 3.21 is out. How do I know which of the other two options is actually installed?

Also, the Ram towing capacity chart for my year truck (with 5’7” 4x4 crew cab) shows 3 entries-1 with the 3.55 rear end and two with the 3.92 rear end. One of the 3.92 entries tows 1,000 pounds more than the other but doesn’t tell me how to know which one relates to my truck. What option yields 1,000 lbs more towing capacity?


Thanks for any help.

Tim
 

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I may have found the answer to towing capacity. Footnote 12 says the Big Horn and Lone Star packages with 3.92 axle have a GCWR of 13,750. One of the 3.92 entries has that GCWR. Since I don‘t have either of those packages I must have the other entry—with 14,750 GCWR—assuming I do have 3.92 gears.
 
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