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.