Dandeman, Thanks for the great info and the great site.
It seemed to me that it was not shifting without the overdrive and that's what concerned me. It would shift on the steep upgrades but not on the down side or if i hit a flat area for a mile or two.Is that normal? Mike

2001 Toyota Tacoma 4x4 SR5 auto trans, ext cab,16" Good Year Tracker tires and 2.7 4 cyl. Love it!!
Mobil 1 5w30. Valvoline 75-90 syn in front and back differential ."Keep the shiny side up and your trash out of my woods!"