Detroit Locker 63-187SL-61B for Toyota 8.4" and 8"

[CruisingSned]

Hi All,
Hoping for some help identifying a locker i went to look at today. The guy says it a Detroit Locker 63-187SL-61B but there is no identifying marks on it. The eaton site shows generic images that are very different.
It appears to be the same as the install in the following link.
Tech: Installing the Detroit SoftLocker in a Toyota 8" Differential
Any help would be appreciated.
Thanks.

 

[gnob]

What are the numbers on the carrier bearings. That will tell you what it goes to.

The 8 and 8.4 don't interchange parts.

 

[CruisingSned]

What are the numbers on the carrier bearings. That will tell you what it goes to.

The 8 and 8.4 don't interchange parts.

Thanks gnob
Been chasing part numbers this morning.

 

[CruisingSned]

Does anyone have any old Detroit locker catalogues please? The locker is stamped with 70988. It is a similar structure to some other Detroit lockers
It has the correct carrier bearings fitted for the front of my 105 series.
thanks