When I jacked up the rear and put the transmission and transfer case into neutral, and turned one wheel the other wheel stayed still. When playing in the sand, both tires were spinning, but I can only leave one strip down pavement.
A limited slip is not a locker... and open spider gears can sometimes make both tires spin in low-traction conditions, like sand or snow...
I've got LS rear in my dually, it will let one set of tires spin before it 'limits' the slip, and the tire with more traction makes the truck move. A true 'locker' would not let this happen, you would get 100% of ring gear rotation at both tires... not an (example) 90% / 110% as is possible with a limited slip or open gear diff.
Is there clutch disks inside the case? The picture isn't clear enough, but with the bolt heads you can see on the right side, I'm guessing it's a LSD. But, I've not had enough of these trucks apart to know for sure. If it was an old chevy Corp 14 bolt, I'd be able to tell ya...
I'd test it as follows:
Jack up the rear of the truck, both tires off the ground. With the trans in park or in gear, see if you can turn one tire easily, and if the other tire spins the oppisite direction... if so, open gears. If it turns, but hard, LSD.
thats the factory lsd for sure. go with an eaton tru trac locker to spin both wheels and save your tires, the true locker is bad to the bone but it will eat your tires on pavement, ill be getting the tru trac seems like thats the way to go!
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Ford Powerstroke Diesel Forum
5.4M posts
265.8K members
Since 2005
A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more!