Jim The explanation given was the Ser. 60 has so much power & torque over the 8V it overloads the transmissions easier. The added 6th gear would add more strain on the trans. if used on hills or heavy loads. Keep the rpms up and avoid problems.
Jim The explanation given was the Ser. 60 has so much power & torque over the 8V it overloads the transmissions easier. The added 6th gear would add more strain on the trans. if used on hills or heavy loads. Keep the rpms up and avoid problems.
Harry
Shirley & Harry / 2000 Liberty / 2008 GMC Envoy Denali