Originally Posted by
biz4two
20k 5th wheel? Short answer...No way.
The limitation isn't the 6.2L really...but the truck itself. You'd need to look into the F450 and F550...at a minimum...IMHO.
biz
We pull those kinda loads all the time with my brothers '08 dually with a PowerStroke. I even pull the same trailer with about 16K on it with a '82 F350 SRW with a 400 small block. Both trucks handle the load quite well.