Any local parts store should carry them. Pepboys, Auto Zone, Strauss, exc.
A diagram for a 1994 Ford e350 can be found in the trucks service manual. The manual can be found through most auto parts.
10* BTDC for all 1973-1979 manual trans trucks, except California 6* BTDC for all 1973-1979 California trucks, auto or manual trans 6* BTDC for all 1973-1979 auto trans trucks.
Owner's manual can be ordered from Ford. You can find a repair manual at most auto parts stores.
The wiring diagram for an f-250 is in the trucks service manual. The manual can be bought through an auto parts or possibly found in the library.
Get a Repair Manual at NAPA, or Auto Zone.
One can find reviews of the Ford Harley from: Consumer Report, The Car Connection, Pickup Trucks, Edmunds, Auto Trader, Car and Driver, Auto 123, Auto Guide, Moto Trend, Auto Week, to name a few.
You can find a 1981 Ford F150 manual transmission diagram inside the vehicle's owner's manual. Some auto stores also have the diagram available.
One can find used Ford trucks for sale from Autotrader, either on their website or by browsing their magazine. Used Ford trucks are sometimes listed on eBay and on the Yahoo used car site. It is also worth checking local auto dealers and the classified advertisements in local press.
You can find an engine diagram for a 2003 Ford Expedition in the vehicle's owner's manual. You can also find it at certain auto stores.
Do a little surfing for a shop manual for older trucks. There are several places that have them.
You can find the rear axle diagram for the 1986 Ford F250 online at places like Ford-Trucks and at Fortification. You can also find these diagrams in the Chilton's manual for that year.
You can find a vacuum diagram for a 1991 Ford Bronco 351 Windsor in a Chilton repair manual if the Haynes manual does not have it. You can also check with local auto stores.