New to the site............running stock '03 Dodge quad cab 4x4 w/ 5.9 Cummins H.O. 6 spd std. Original owner........truck used mainly for plowing snow on private road. Occassional road trip to hunt Colorado

Looking for new tires...........285 R70-17..........will they fit?

Any help is appreciated

Will they improve or decrease MPG

 

Stock Tire - 245/70R17 Search Tires Tire 1 - 285/70R17 Search Tires
Section Width: 9.64 in 245 mm
Section Width: 11.22 in 285 mm
Rim Diameter: 17 in 431.8 mm
Rim Diameter: 17 in 431.8 mm
Rim Width Range: 6.5 - 8 in
Rim Width Range: 7.5 - 9 in
Overall Diameter: 30.50 in 774.7 mm
Overall Diameter: 32.70 in 830.58 mm
Sidewall Height: 6.75 in 171.45 mm
Sidewall Height: 7.85 in 199.39 mm
Radius: 15.25 in 387.35 mm
Radius: 16.35 in 415.29 mm
Circumference: 95.81 in 2433.5 mm
Circumference: 102.7 in 2608.5 mm
Revs per Mile: 681.9
Revs per Mile: 636.0
Actual Speed: 60 mph 100 km/h
Speedometer1: 55.9 mph 93.2 km/h
Speedometer Difference: - Speedometer Difference: 7.216% too slow
Diameter Difference: - Diameter Difference: 6.73%

The top listing is your stock tires, the 2nd listing is the tires you specified. It should increase your mileage a little bit, remember to get your speedo recalibrated tho.

As far as clearance, I am sure they will clear in the rear, but you might need a leveling kit to clear the front.

Handy tool for tire sizes. Tire Size Calculator - tire & wheel plus sizing