The wheels on a 1998 Chevy Silverado are 288 x 288. The first GMT800 Silverado/ Sierra were released in 1998 as 1999 models. The Chevy Silverado is available with either rear wheel drive or four wheel drive.
There is a proportioning valve and once the repair is done and you have bled all the air out of the system the valve should reset itself unless it is stuck. If it is stuck you may have to replace the valve assembly if you can't free it up.
The first Silverado Chevy was released in 1998 and it was a light pickup truck model named GMT800 Silverado. Prior to this, the term "Silverado" was used by General Motors to refer to the trim for the Chevrolet C/K pickup trucks.
NO there is not. Need to check fuel pump fuse and relay and make sure there working and if they are then check the wireing harness were it plugs into the top of the fuel tank sending unit, Chevy had a problem with the connector shorting out. Are you sure the fuel pump is OKAY/GOOD ?