Changing spacer blocks from 3" to 5" on the 5th wheel?

Switch to a smaller tire size on the trailer(low profile)?

 

What are your weights at right now? Sliding your fifth wheel all the way to the back is only hurting your situation. You should only be sliding it back if you are too heavy on your steers.

 

You can get higher 5th wheel pedestals. It's heavy dirty work but not particularly hard to do. That would be the route l would go.

 

Yea I'm aware. But moving the fifth wheel will only transfer weight on the frame of the truck between the steers and drives. I understand that raising it up will let the liquid level slightly to the rear and taller risers might help.

So again, what are your steer and drive weights?

Also over extending the bags can lead to other issues. You might be over extending the shocks which can lead to blowing the seals in them. It also affects the U joint angles in the driveline which can cause them to fail prematurely.

If you want to get a taller fifth wheel the risers are the correct way to do it. They aren't hard to change. Removing the fifth wheel plate is easy. Just have to pop the retaining pins/bolts off the sides of the plate then knock out the main pivot pins. You can then lift the main plate off and disassemble the slider. Some trucks the slider/risers are 1 welded piece so you'll either have to remove the tracks from the truck or cut it and weld the new parts in place.

 

Generally,get your 5th wheel up to around 54" height.