Dealer programming tire size?

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Bdersch

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hey there another question...

This spring I will be getting newer tires most likely 305-55-20. I currently have the stock 17" tires/ rims. How do I go about getting it reprogrammed so that it doesn't throw off my speedometer? Also, is the dealer going to be stupid about it since its a bigger and wider tire?
 

BadHemi

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When I upgraded my tires I got the hypertech tire programmer. 185$
 

Bird

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Diablo. Since every Ram owner should have one of those anyway. :)
 

MADDOG

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Ask the dealer first. They may charge you for the flash.

They should have no problem doing this. I'd check the tire height and have that info handy when you go in as their tool may not have specific tire sizes listed.
 

norville

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Ya, my dealer wants $92 every time you come in.
 

norville

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I had keys made along with me trying to get code RDZ installed onto my truck..
 

stimpy433

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My dealer said they can only change the tire size to whatever was available for the truck. Can't enter odd or custom tire sizes with their equipment. Programmer can enter most any size you want....
 
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Bdersch

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i would assume they wont have 305/55/20 in there list of tire sizes then... lol

Guess i will be getting a programmer. Great
 

danh63

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Who make a programmer for 6.4 Hemi? Hypertch doesn't have one yet they told me
 
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