any pics of 06 20 inch wheels?
Senior Member
Joined: Sep 2005
Posts: 607
Likes: 1
From: Wylie, TX
Originally Posted by thereisnospoon
Well, discount tire told me that upping from a 255 70 r16 to a 275 55 r20 would not need a speedo recalibration. Were they pulling my leg? Sounds like they were. They told me that I was changing within less than 15% so my speedo should not be off.
If I DID want to check it and took it to the dealership, how much would they charge for something like that?
If I DID want to check it and took it to the dealership, how much would they charge for something like that?
Senior Member
Joined: Jul 2005
Posts: 490
Likes: 0
From: Fort Worth Tx
woohoo!! That's just the kind of thing that can get me into a LOT of trouble.
Anyone know how those tires (275 55 r20 vs. 255 70-16) would affect the gas mileage? Would the dealer charge me to recal?
Anyone know how those tires (275 55 r20 vs. 255 70-16) would affect the gas mileage? Would the dealer charge me to recal?
Junior Member
Joined: Oct 2005
Posts: 3
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Originally Posted by 04NickySP2
The speedometer would be slow by 6.15%. Going 54 on the speedo you would really be doing 60 mph.
Senior Member
Joined: Jul 2005
Posts: 490
Likes: 0
From: Fort Worth Tx
That's not too bad - took her by the dealership today because I threw a code that is probably nothing. After hearing they were going to charge 90 bucks just to hook the thing up to the computer, I opted to disconnect my battery cables and cross 'em.
I promise there is a point without hijacking this thread:
...... If they will charge me 90 bucks just to take the thing back there to look at the CODE, then I'm mortified how much they would charge to recal my speedo/odo.
I LOVE the look of the 20's on the new 150's.
I promise there is a point without hijacking this thread:
...... If they will charge me 90 bucks just to take the thing back there to look at the CODE, then I'm mortified how much they would charge to recal my speedo/odo.I LOVE the look of the 20's on the new 150's.
Last edited by thereisnospoon; Oct 28, 2005 at 10:17 PM.
Member
Joined: May 2004
Posts: 30
Likes: 0
From: Jacksonville, Florida
Originally Posted by 04NickySP2
Yes. You can take it to the dealership or buy a aftermarket programmer.
I just did the math.
A 275/65/18 is 32.07 inches tall
A 275/55/20 is 31.9 inches tall
Your speedometer would only be .006 off if you went with that size tire for 20's.
If you go with a 305/55/20 would be 33.64 inches tall. So your speedometer would be off by 5%.
I just did the math.
A 275/65/18 is 32.07 inches tall
A 275/55/20 is 31.9 inches tall
Your speedometer would only be .006 off if you went with that size tire for 20's.
If you go with a 305/55/20 would be 33.64 inches tall. So your speedometer would be off by 5%.
I ask because I am seriously considering the 2006 20" and want to know as accurately as possible the height.
Thank you,
Senior Member
Joined: Oct 2004
Posts: 860
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From: British Columbia
Originally Posted by sliderhss
I just measured my 275/65/18 and they are aproximalty 30" high from the floor to the top of the tire.
Member
Joined: May 2004
Posts: 30
Likes: 0
From: Jacksonville, Florida
Originally Posted by wasachevyguy
Ah yes but keep in mind that the tire is being compressed from the weight.
thank you,
Howard S.
Senior Member
Joined: Jun 2001
Posts: 276
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From: Okc,OK,USA
Also remember that tires dont measure true. For example the 31in firestones that came on my bronco measured 29.7 inches off the truck. Thats why when you readtire reviews in Four wheel and offroad etc they give a true measured height as well. Also they differ between manufacturersfor example a 305/40r22 by nitto can measure out differrent than a set of 305/40r22 yokahomas
