FINKSTR
Full Access Member
One thought ? With 3.73's, try running @ 62 MPH, 1850 RPM ? Let your torque pull the load.... anticipate the hills by building some boost.
I think yul find the Downshifts to be Much less ??
Long or steep hills (?) do the OD lockout.. before you get there. (duh)
Joe
Joe,
Thanks for the advice. I'll give it a try next time I hook up the trailer. Hopefully I can take advantage of the torque curve and stay in OD as much as possible. When I lock out the OD, the engine noise is nearly unbearable. Hopefully I can find some suggestions in the forum on insulating the cab, particularly in the firewall area.