PowerStrokeNation : Ford Powerstroke Diesel Forum - View Single Post - 22.5 inch wheels
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post #9 of (permalink) Old 08-25-2010, 04:22 PM
bill4d
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Join Date: Mar 2009
Posts: 262
Re: 22.5 inch wheels

Quote:
Originally Posted by bigmurph View Post
Actually thankyou both the answers have helped, I am still wondering if the increased overall height of the tires will knock down the final drive for lack of a better term of the 4.30 gears as I don`t need the additional payload they give, and don`t want the high rpm`s they cause at highway speeds, but at the same time I am worried that the same increase in tire size will drop the ratio too low in an F-350 as they have 3.73s if I am not mistaken.
If you are using the proper size gears, your highway RPMs will be affected. I have 46" tires and 4.88 gears. At 70 - 75 mph I am at about 1700 - 1800 RPMs.
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