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Old 05-04-2012, 06:36 AM   #1
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Tires and wheels?

My 2004 f150 lariat screw 3.73 has the factory 18 in tires and rims. its time to replace the tires and i would like to know if i should consider changing out the rims for 17's.

what are the pros and cons? will i see/feel a difference in mileage, ride, comfort, towing?

thx
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Old 05-04-2012, 07:04 AM   #2
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If you do the swap, research tire specs to get the 17" that has the exact same outside diameter to retain speedometer accuracy. Also choose the 17 that has the exact same or greater individual weight carrying capacity. One pro is the 17 tires may cost a little less. The other pro is the smaller wheel diameter with the same tire outside diameter means there is a little more tire sidewall possibly giving a little softer ride. The cons. You have to buy wheels..! Another con. When trading or selling your truck, a nit picking buyer will open the door and see the original tire data sticker and say "What's up with this?"
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Old 05-04-2012, 07:09 AM   #3
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Thanks DJ-ford.

Very helpful.

If I go this route I would keep the 18 in rims for resale
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Old 05-04-2012, 07:09 AM   #4
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Quote:
Originally Posted by 4kmprs View Post
My 2004 f150 lariat screw 3.73 has the factory 18 in tires and rims. its time to replace the tires and i would like to know if i should consider changing out the rims for 17's.

what are the pros and cons? will i see/feel a difference in mileage, ride, comfort, towing?

thx
My 2010 F150 came with Michelin ..18"..I like them ...i am pretty sure they are LTX ... "P" rated tire ..probably ..but i like the ride, traction,etc
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Old 05-04-2012, 07:35 AM   #5
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What you have to watch out for is brake clearance, when going to a smaller diameter wheel. There is a reason it had the 18 inch OE wheels.

Even if the 17 inch wheels will clear all the brake components, they won't allow in as much air flow between the wheel and brake to help air cool it....which is going to result in your brakes running hotter and maybe wearing quicker
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Old 05-04-2012, 07:43 AM   #6
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As mentioned above, it you go with 17" wheels make sure there is no issues with clearances, there should not be as 17" wheels were standard on 2004 model with 18" as option. Your mileage per gallon will decrease slightly but your ability to tow will increase by 500 lbs. Look into your owners manual for more info,
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Old 05-04-2012, 08:11 AM   #7
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I can't imagine that this kind of swap would be worth the trouble and expense. You MIGHT get a slight better ride with the taller sidewall. But, you will wind up with the same diameter so no real advantage on towing power. I would definitely not make this swap. Good luck.
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Old 05-04-2012, 11:24 AM   #8
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I would want to know why you are considering the down size?
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Old 05-04-2012, 12:00 PM   #9
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I have the Michelin LTX M/S2 "P" on my Expedition and love them. I do not really see a need for you to change rims. These tires will work perfect for you and give you a nice ride.
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Old 05-04-2012, 12:46 PM   #10
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Are you looking for a higher load rating ?? I found online at discount tire or was it belle tire ?? A 18" tire for my F150 with a load rating of 3,500lbs= a 124 rating..do some searching
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