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Tire Size..+ Spedo

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Old Nov 2, 2005 | 12:04 AM
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Default Tire Size..+ Spedo

Hey, is there anyway to reprogram my spedo for a new tire size, without a superchips?
 
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Old Nov 2, 2005 | 12:34 AM
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Default RE: Tire Size..+ Spedo

I'm assuming you went from like a 17 to a 22??? I know you can visit the dealership and they can adjust it for you....or a local shop...

I may be misunderstanding your question though...
 
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Old Nov 3, 2005 | 12:03 PM
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Default RE: Tire Size..+ Spedo

Actually, Im going from a 20" to 17" steels, but I want taller tires on the 17's
 
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Old Nov 3, 2005 | 12:53 PM
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Default RE: Tire Size..+ Spedo

You dont need to adjust your speedo so long as the diameter of the wheel you had on there doesnt change from the wheels you put on....

Basically, you want the new tires to be the same height as the ones you took off.....if you can do that, you wont need to adjust your speedo...
 
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Old Nov 3, 2005 | 01:53 PM
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Default RE: Tire Size..+ Spedo

Does anyone know if you can go down to a 16" wheel on a 04 Ram? I currently have an 04 Ram with 20" wheels and am thinking of getting cheaper winter tires. thanks
 
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Old Nov 4, 2005 | 03:38 AM
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Default RE: Tire Size..+ Spedo

I dont think 16 inch wheels will fit because of the brake calipers, but I might be wrong.
 
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Old Nov 4, 2005 | 11:44 AM
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Default RE: Tire Size..+ Spedo

Hey bro.....
How you liking those stock 17's coming from those 20's? What size/type tire did you go with?

oh, one other thing, when you went from 20's to 17's, did you get the dreaded "power stoping all the time look" rake? I was wondering if wheel size was a determining factor on that.
 
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Old Nov 4, 2005 | 10:46 PM
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Default RE: Tire Size..+ Spedo

In answer to the original question... The dealership can do it. I had them reprogram for the new tires and for my rear end swap, because even though the speedo reads correctly after a rear end swap, the ABS computer gets very confused. it ran under $40. As to the rake question... larger wheels make it less noticible, but drop shakles make it look right. Course the bushing moan and groan... 16s will probably fit on the rear but will not clear the front brakes.
 
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Old Nov 5, 2005 | 12:02 AM
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Default RE: Tire Size..+ Spedo

to fit 16" you would have to grind down the frt caliper in order for them to fit, just buy some 17" and call it good, IMO
 
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