Pic of new wheels on.
Champion
Joined: Feb 2010
Posts: 3,686
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From: Greenfield, Wisconsin
Any difference will throw the speedo off as the truck has a specific tire height that it is calibrated to to generate your speed. If you put a smaller tire on, the truck will read faster and with a larger tire, the truck will read slower. If I remember correctly, I went up close to 4-5 inches bigger than stock on my old truck and in the city the speedo was 5mph slow. As the speed got up in the 70mph range, it was actually closer to 8mph off. You can get the speedo recalibrated for about $80 bucks from the dealer, just deal with the difference, use a gps to watch your speed, or buy a programmer.
Captain
Joined: Sep 2009
Posts: 536
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Thanks Keaton, Dakotaff, and Slick. Also thanks for the link Blown I may have to get me some of those shackles someday. I washed her up today and went to my moms for a bbq and left my camera at home now its to dark outside to take pics lol. The calipers and drums really look good and I wanted to snap some pics. Oh well....
Does anyone know if my speedometer or mpg display on the top console be off since I switched wheels and tires? If so how much? Thanks.
Does anyone know if my speedometer or mpg display on the top console be off since I switched wheels and tires? If so how much? Thanks.
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Veteran
Joined: May 2010
Posts: 481
Likes: 0
From: Wesley Chapel, FL
Thanks guys I will take my gps with me next time I drive it and see how far it is off. If its only a few mph difference I will deal with it. Does using a programmer void your power train warranty?
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Veteran
Joined: May 2010
Posts: 481
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From: Wesley Chapel, FL
Ugh I didnt get home till the sun went down so I did not get the chrome and metallic paint shining like I wanted to for some good pics, but these are pretty good.
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Did everyone else that went with a 20 inch wheel remove their spare tire from underneath the truck? Will a spare from a ram with 20 inch wheels fit under there?
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Did everyone else that went with a 20 inch wheel remove their spare tire from underneath the truck? Will a spare from a ram with 20 inch wheels fit under there?
Last edited by Brian9; Jul 19, 2010 at 08:35 PM.
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Veteran
Joined: May 2010
Posts: 481
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From: Wesley Chapel, FL
Thanks guys! 
Oh and Hendrix my dakota is a 4x4 as well and they fit perfect. You should have no problems getting a black set to fit on your truck. Though I doubt you would want to take them off road unless you went with a bigger all terrain tire like slick dakota did. I kept my stock aluminum 16 inch wheels with the 265-70-16's on them and put them in the shed so I can put them back on if I need to go off road or haul a heavy load.
Oh and Hendrix my dakota is a 4x4 as well and they fit perfect. You should have no problems getting a black set to fit on your truck. Though I doubt you would want to take them off road unless you went with a bigger all terrain tire like slick dakota did. I kept my stock aluminum 16 inch wheels with the 265-70-16's on them and put them in the shed so I can put them back on if I need to go off road or haul a heavy load.
