I have restored the diff to OEM crown and pinion but I now need to reprogram the PCM to match , I have and XCal3 but it doesn't have a option to change to 3.55 ratio. Does anyone know when I can get s stock XCal3 file or if this can be modified with Forscan?
Unfortunately gear ratio isn't user accessible on xcal3. Somebody with full tuner access will need to build a file for you. First person I would try is Marty. Mo's Speed Shop.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.