I recently bought a 1999 F-350 SRW 4x4 7.3. Im looking to lower the rear end of the truck to level it out, I think the gap between the rear tires and fender is too large and isn't really practical for towing trailers. The previous owner said there was a lift on it, but there seems to no evidence of anything lifted in the front and the back has 4-inch blocks (which from everything I read was standard for the F-350?). Currently, measuring from the ground to bottom of the fender, it sits 41" in the front and 45" in the back. Was the 4" inch block on the rear stock for an F-350? Anyone have the stock height the truck should sit at? And can I just take the rear blocks out and have the leaf springs sit on the rear end so it sits 41" across the board?

 

You could try putting you VIN in here and looking over the build sheet. www.etis.ford.com Maybe it was setup with the snow plow package like mine is.

 

4" is stock for the 350's... those rear springs will compress quite a bit when loads applied to the rear of the truck.. unloaded your center of gravity is more forward due to thats where all the weight is on the truck. when a loads applied to the rear it evens out the truck moving the center of gravity back towards the center of the truck.. if you ever look at the older trucks where they were built level that has a load in the rear youll see that the rear ends up squatting while raising the nose higher into the air.. while this makes for better traction over the drive wheels it also takes away from the steering since your removing the weight from those tires. correction for this was to add a lift in the rear so that while a load was applied the trucks sat level keeping an even distribution of the weight over the wheels.

something to keep in mind these vehicle are designed to work for a living.. where the 150's are more balanced front to back since the majority of the people that have them get them to be used as daily drivers for the occasional hauling use... even with an empty trailer youll see the rear of that truck squat till the springs start supporting the load of the trailer..