Look under the lower dash by the transfer case shifter.
You will have to have it scanned for codes, check with your parts house. They may scan for you.
Yes.. I Have a 1990 F-150 4X4 and it is a 5-Speed Manual Transmission
Replacing Ball joints Check Related Links Below
4X4=12
this could be caused by a number of things,first check that shock absorbers are good. next check all ball joints and wheel bearings.then have king pins checked
Who cares
Auto Zone will check your computer codes for FREE. It will actually tell you what you need to know.
See link below.
The gear oil best suited for a 1991 4x4 is 75w-40. The best idea, however, is to check the owner's manual which will provide recommended products for the vehicle.
you can probably find a used step bumper at a wreckers shouldnt cost more than 100 bucks to buy
5500
See link.