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when you post you need to give us some info
at a min. we need year, model, eng, trans, 2 or 4 wheel drive
it makes a differance
if you have an electronic speedo then you can do it at the speedo easily
if yours is nonelectronic you can do it but it means changing
the driven gear at the trans
not hard to do
by the way welcome to the site
a good place to learn about your truck
Get a super chips programmer, inside it you can set your speedo calibration for any imaginable tire size, its cheaper in the long run, unless you want to go to a dealer every time you upgrade tires/gear ratio.
With all the other features in there, like air/fuel ratio, shift points, etc... It is by far better in the long run to buy the programmer, they really bone ya by charging the hour fee for 15min of work, depending on the shop and mechanic it isn't even a 15min job, unless they need a smoke before they give you back the keys.
There are several other programmers out there, they all do pretty much the same thing, just remember, if you use one, you can only use that programmer on that truck, until you reset setting back to factory, as it stores the vehicles settings on the programmer until you switch back, which means you can't have a dealer change settings unless they reset your pcm if you loose your programmer.
Something thats in the fine print on those lil doo dads.
Where is the best place to buy the programmer from? I have already had my truck on the dyno to get the speed checked. I would like to get this done as soon as possible. Do you know if Advanced Auto or anybody like that carries thses? Thanks for the info.
Your local auto parts store should carry them, I know Autozone, napa, federated, and pepboys all carry some form of the programmer, the name and/or company will be different, as well as the differen't bells and whistles, I also know that www.jegs.com and www.summitracing.com both carry these programmers, the only down side is they are vehicle specific, but they are cheaper than going to the dealer if you do a lot of your own mods and such at home.
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