Need part # for differential yolk kit

[Tom87GN]

Need to replace mine and the local Buick dealer cannot find the correct part numbers. The seal at the front of the pig is leaking and I'm not even sure if it's the correct unit for the G80 posi code that my car carries.

 

[turbofish38]

Try GM part number 12470387. This is a newer design that uses what is called a triple lip seal. It comes with a new style seal that will only work with the new yoke so if you need to replace the seal make sure you grap the part number that is on it or tell the parts guy you have the newer style flange.