Wire to rear diff?

[ezcurra]

Hello,



I have a pair of axles from a 1990 W350 4x4 CTD. The rear axle has a tag for special fluid for a locker, and has a wire going to the top of the differential housing. What could this wire be for, some sort of electric locker?



Thanks,

Mikel

 

[Niki]

There is an electrical connector there for the rear ABS. If its just a wire, I don't know.

 

[TLarsen]

Most lockers do not require additive, but most limited slips do. You apparently have a limited slip in the rear axle, they are not the same as a locker. Like Niki said, that wire is probably just for the tone ring sensor.

 

[ezcurra]

The truck did have ABS. You guys are right. Thanks.