8.8 id tag info

[5.0juggalo]

i have an 8.8 rear end out of a 88 mercury cougar xr7 in my 80 mustang, the tag on it read 3 S L 08 i know that meansit is 308 gears and the L means its a locker but what does the S stand for i've been searching all over and i havent found anything about it
if anyone could help me with this i'd appreciate it
thanks

 

[Mustang5L5]

It's an 8.8 with 3.08 gears and a Tracktion-lok differential. Also, it comes equipped with larger 10" drum brakes rather than the typical 9" used on most 8.8 rear ends that decade.


Pretty rare rear end actually.

 

[5.0juggalo]

so is that what the s means 10 inch drums?

 

[Mustang5L5]

It is possible.

A lot of the codes on the axle pertain to dates codes on when it was built. All my info shows it as a standard quad shock 8.8 with 3.08's and a t-lok. Only difference is the 10" drums.

 

[ttop88]

The L S stands for limited slip