lapoune

Is it possible to identify if a g50/20 has a lsd or not from the ID at the bottom? Says G50202. I'm sure I remember reading that last number being a 2 is lsd and 1 is open, but can't find that information anymore...

Bill Verburg

that last 2 means lsd, for a /20 its a 25/65, either GKN or ZF depending on the year

this is a g50/31 w/ lsd

lapoune

Nice thank you Bill. Weird thing is if I turn one of the output shafts the other turns the opposite way like an open diff, so maybe the thing is shot...

Chuck W.

When I bought my cab it had 46,000 miles on it and the LSD was out. the PPI missed it not working among other things.

Bill Verburg

These things are set up on the loose side from the factory, wear further loosens them up, It's quite common for them to act like an open diff w/o a lot of torque going thu them even if not totally worn out.

pp000830

Hi lapoune,

Here is my understanding from others.
Lift the rear wheels off the ground. with the engine off and in gear if when turning one of the rear wheels by hand the other rear wheel turns in the opposite direction it is a non-limited slip, Also if the limited slip feature is worn out I understand it will do the same.
For a limited slip turning one wheel and the other wheel will turn in the same direction.
Andy

Bill Verburg

again, not always, it depends on the state of the ls d plates and preload. Factory preload is so low that they can appear to be open.

nk993

just submit your vin to type911 and you can see what the car came with from factory