no posi

[Sleeper Diesel]

showing off infront of a friend. i was only leaving one tire track. i changed the front and rear gear oil about 6 months ago with the recommended weight. why would i not be able to spin both tires.

 

[Tail_Gunner]

R U sure you have a posi unit in the rear end?

It was an optional item from the factory, ableit I think most trucks had that option.

 

[Sleeper Diesel]

it used to spin both tires. i bought this truck in 03 with 120,000 miles on it. is there a code in the vin or is there somewhere i can look to see if i have this option. like before it used to spin both tires. thanks for the replies

 

[bushpilot]

check the tag on the pumpkin 3L73 (L=ltd slip)
did you put TOO MUCH friction modifier in it ?

it might need adjustment...as i understand they can
be "tightened up"

 

[93turbo_animal]

if you have anything its limited slip rear end which is how it sounds limited. They have clutches and steels like an auto tranny with a spring in between that applys preasure. So when you turn they slowly spin different speeds so it slips but when you try and punch it the friction is supposed to spin both wheels but just like auto trannys these clutches wear out. Unless the newer ones are different theres no way of tightening one up out side of rebuilding it or possibly shimiming it

 

[trackspeeder]

if you have anything its limited slip rear end which is how it sounds limited. They have clutches and steels like an auto tranny with a spring in between that applys preasure. So when you turn they slowly spin different speeds so it slips but when you try and punch it the friction is supposed to spin both wheels but just like auto trannys these clutches wear out. Unless the newer ones are different theres no way of tightening one up out side of rebuilding it or possibly shimiming it

Still the same

 

[Sleeper Diesel]

i changed the rear diff fluid about six months ago. filled it up with royal purple 75/140.