The term "Non Limited Slip Differential" is Ford's way of telling you that your differential isn't special.
A limited slip differential has clutches in it that stop a spinning wheel (the one that isn't getting traction) and send the power to the one that has traction, so the vehicle can get out of snow or mud. A non limited slip differential can only send power to one wheel at a time, which is the one with the least amount of rolling resistance (the one not getting traction).
GM started offering Limited slip differential in 1957
The front differential is an "open" differential. No limited slip components there.
Is my 2002 Chevy Tahoe a slip differential or a limited slip differential
no
No.
No.
No.
I believe that is a 3.55 conventional axle ( non - limited slip )
Limited slip is a locking differential that distributes power evenly to both drive wheels.
On the end of the drivers door on one of the information stickers you will see a 2 " character " axle code such as " 19 " ( which would be a 3.55 non - limited slip ) , " 18 " ( which would be a 3.08 non - limited slip ) " H9 " (3.55 limited slip ) " B6 " ( 3.73 limited slip ) The code is used to look up the type of differential and gear ratio
Open the drivers door and look for a sticker on the end of the door that shows the axle code For example : ( D4 - 3.73 limited slip )--------------------( 45 - 3.55 non - limited slip ) ( D1 - 3.27 limited slip )--------------------( 46 - 3.73 non - limited slip ) ( D2 - 4.10 limited slip )-------------------- ( 41 - 3.27 non - limited slip ) --------------------------------------------------( 42 - 4.10 non - limited slip )
"Open" differential is non~limited slip or non positraction. They are less expensive and if you get one wheel stuck only the free one will spin. There are no advantages that I am aware of to have one. On the contrary, it's easier to get stuck.