blaz4wd
Full Access Member
Hello everyone. Here is my ? I have a 93 ford f250 non turbo 4x4 with the e40d trans. I know when towing not to have the o.d. engaged. Now I plan on taking a family trip in July towing a 29ft travel trailer. With a unloaded weight of 4500lbs. On interstate speeds of 70+ can you engaged the o.d.? Or always run it disengaged. The last time I towed the father in laws boat at 55-60 mph I left it disengaged. So let me know what's the best. Thanks Joe