BILL JACOBS
New Member
- Joined
- Sep 17, 2017
- Messages
- 8
My 2004 mustang gt had a 3:73 diff gear installed which changes the speedo reading! My gt is an automatic 4 speed w/OD! Bought a Ford speedo recal unit and installed just as the Ford instructions stated! GREAT, NOT REALLY!!! Speedo was corrected perfectly BUT, now the torque converter shifts up and down iradically , was perfect before!! Consulted Ford dealer and was told there is no adjustment for this!!?? I just disconnected and shifts fine, of course speedo is off as before!! Any Ideas?? THANX!!