4.6MikeMustang

Just got my 3.73's in and i was wondering if i could calibrate the speedo with something other than a chip or a tuner. i know there is a speedo tooth thingy but can 04's use that??

-Mike

ZW99GT

1-800-mustang. Thats dallas mustang. They have a speedo recal for $90. I got my 3.73s in friday, so im in the same position you are.

4.6MikeMustang

Geez 90 bucks...nothing a li'l cheaper? what is this thing called??

-Mike

SilverGTV8

Ford can flash the ecm up to 3.73 gears. Give them a call and see what they would get to flash the ecm.

Dan04COBRA

Probably cost a couple hundred bucks for it, and flashing the ECM for any mods will void your valvetrain warranty regardless if Ford does the work or not, any modifications whatsoever to your cars computer voids warranty. The Magnuson-Moss act doesn't protect you with the ECM.

Just spend the $90 bucks on a Spedo recalibrator.

Richman

I was wondering the same thing, would a tuner work just as well to recal my speedo? (Predator)

jdaniel

It would if you wanna pay $400 + shipping.

Richman

well i figure ill knock out 2 birds with one stone, i was planning on getting a tuner anyways.

no point and buying the speedo recal then buying the tuner


one question tho, is it bad to run a tuner on a high milage engine?

C/Note

call 1 800 mustang tell them you need a speed cal....you got elect speedo dont you ?????90 bucks cheaper than a chip

gt0389

so there is a way to get gears and not have to get a chip or programmer. i have a warranty and thats whats been holding me back from gettin gears is the programmer will void the valvetrain.