Our 1994 F150 Supercab 4x4 isn't running right. When put in drive and given some gas it starts to go and then bogs down so much it's undriveable. It does this in 1st, 2nd, and D. Reverse seems to be ok. Also, when driving and taking my foot off of the gas pedal it slows down too much, almost like it's dragging something.

I jacked up the rear end and am able to turn the wheels by hand, it doesn't sound like the brake shoes are rubbing.

Any help would be appreciated.

Thanks, Bill