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Old 08-05-2017, 03:12 PM   #2 (permalink)
redwngr
Diesel Expert
 
Join Date: Jan 2008
Location: SW ONT
Posts: 2,802

Can't help with the mpg comparision, but, FWIW, all L5P pickups come equipped with 3.73's, including the fleet and CC models.

Generally the 6.0 (L96) pickups come with 4.10's and the GM (as opposed to Allison) transmission. Some fleet and CC model gassers are available with 3.73 or 4.10.

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