I have the 4.88's and I am averaging 13mpg mixed city and highway. I get 9mpg towing my 14,000lb 5th wheel camper. I thought there was a flash update that helped with fuel mileage.............I can't help with the cam......
I was pulling my 12000 boat... and got about 7mpg... Took it in for service.. also complained about my power... Feels like I have lost a ton of power... No luck yet...
Has anyone hear of using a gear bender?
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