LIFT QUESTIONS, ECM REFLASH

[mrtazwrench]

WHAT'S THE BEST THING ON THE TJ WHEN CHANGING TIRE SIZE TO RECAL THE SPEEDO, ECM ETC, HYPERTECH OR? CAN THE DEALERS REFASH FOR DIFFERNT TIRE SIZE? BEEN SO LONG THAT I'VE BEEN OUT OF THE DEALER I DON'T REMEMBER. I KNOW THE ONE GM DEALER DID A AFTERMARKET REFLASH. OR HAS ANYONE SWAPED TIRES AND DIDN'T CHANGE THE CAL, HOW DOES IT RUN?

[jeepsr4ever]

Your best bet is to call the dealer. I dont know of one dealer that will mess with the ecm unless you guy a new one

[mrtazwrench]

THANKS MC, THE ONE DEALER I WORKED AT THEY LIFTED SOME G.M. TRUCKS, IF I REMEMBER RIGHT THEY WERE USING AFTERMARKET PROGRAMERS, BUT I LEFT THERE IN 98 SO THOSE MEMORIES ARE GETTING FUZZY.

[Tigger]

Most dealers will not Flash a PROM, they will help you out by doing the calibration for bigger tires and different gears (at least then did in TX)

[mrtazwrench]

THANKS TIGGER, IT WAS KIND OF AN AFTER THOUGHT WHEN TALKING ABOUT THIS LIFT DEAL. THE GUY WAS IN YESTERDAY, BUT I DIDN'T FIND OUT IF HE BOUGHT A TJ YET, I WAS BUSY, AND HE BROUGHT A DRIVE SHAFT BACK FROM THE PLACE HE WORKS FOR, FRONT SHAFT AND IT TOASTED THE CV JOINT IN 2500 MILES ON A PART TIME 4X4 TRUCK WHERE THEY ONLY USED 4X4 2 TIMES SINCE THE SHAFT WAS INSTALLED, LOOKED LIKE THEY NEVER GREASED IT, AND DIDN'T WANT TO WARRANTY IT.