JTaylor
New member
Anyone on here an Allison Tech or has access to software that Unlocks 6th gear off of a WTEC II B400R that only has 5 forward speeds programmed into the ECU? I'm at wits end since Allison treats it like gold and you need a written permission slip from the manufacturer to get it unlocked. I'm willing to pay top dollar since I need multiple ecu's unlocked.