You can view the 1998 Ford F-150 owners manual online at :
www . motorcraft service . com ( no spaces )
Click on Owner Guides
( page 142 states that the jack and lug wrench are under the seat )
Under the seat ( according to the Owner Guide )
Under the seat ( according to the 1998 Ford F-150 Owner Guide )
Look behind the fender under the hood on the left side.
The jack is located under the passengers side seat, strapped to the floor
The tire jack is located in the rear inside of your Chevy blazer. The jack can be found in a side compartment.
Fold the top of the right rear seat forward. Open the door behind the seat. The jack is inside.
I bought one of those jack rods for my 1998 Ford Expedition XLT at the local dealer for under $20.00.
the jack is located behind a panel on the right rear side behind rear seat
Underneath the tire in the trunk
In the extended cab, it is located behind the jump seat on the passenger's side.
the tool is either clipped across the top of the grill in front of radiator under hood, or it is behind the seat
it is hanging under the bed of truck between the rear tires. the jack and lug nut tool is located under the hood.