I'm looking for a stronger axle than my current 12 bolt rear, and I got this 14 bolt free off of a 3/4 ton. It's not the FF 10.5, its the SF 9.5 and has eight lugs. I run a 6.2 diesel, 4.88 gears, 40' swampers, and want a detroit locker or spool in the rear. I wont be driving the truck on the street at all. How do the two different 14 bolts compare in strength? Is this going to be strong enough for my needs?