I'm not sure about the 89 but on my 95 it's located on the inside of the frame rail under the drivers side door.
5 QTS. with new filter.
on top of the throttle body
Yep
in the fuel tank
It is located on the driver side. Right below the second door.
no
There is no cabin filter on a 1989 Chevy Silverado.
The rear gear ratio of a 1989 Chevy Cheyenne truck is between 2.73 and 4.56. This is the number of times the drive shaft rotates in relation to the tires.
oil filter is inside engine compartment front left fender by the head light
1500
Yes with modifications.
No.