'99 rear differential ratio
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Joined: Jan 2004
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From: Northern California
'99 rear differential ratio
Hello to all,
Recently purchased a 99 F150 with a H9 rear differential code which I interpret to be a limited slip 3:55 gear.
Problem is it's only getting 15 miles a gallon and that's highway. Is there a gear ratio that's lower to improve my miles per gal? Limited slip is not a priority at this time, primary concern is fuel economy.
Thanks.
Recently purchased a 99 F150 with a H9 rear differential code which I interpret to be a limited slip 3:55 gear.
Problem is it's only getting 15 miles a gallon and that's highway. Is there a gear ratio that's lower to improve my miles per gal? Limited slip is not a priority at this time, primary concern is fuel economy.
Thanks.
