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gvw5400 · 05-15-2017, 10:24 PM

Go 3.73, life is short.
Chances are you will not see a huge difference in mileage with 3.42.
A warm up big block is not know for gas mileage!!
Have fun with your truck!
All the Best,
Dirk

05-15-2017, 10:24 PM	#18
gvw5400 Registered User Join Date: May 2013 Location: Colorado Rocky Mountains Posts: 263	Re: 3.73 or 3.42 Go 3.73, life is short. Chances are you will not see a huge difference in mileage with 3.42. A warm up big block is not know for gas mileage!! Have fun with your truck! All the Best, Dirk