GM part number 3869316...what is it?

[al8apex]

one more book and I found it:

LOTS of coverage:

case, differential less gears

72 Chevelle P.T. with 4:10
67 Chevelle P.G. w/AIR exc P/Trac, 3.08, 3.36, 3.55, 3.70 ratio
67-68 Camaro, Chevy w/ 2.56, 2.73, ratio exc P/Trac
68-69 Pass w/T.H. 2.56, 2.73 ratio exc P/Trac
68 Chevelle w/2.73 ratio exc P/Trac
69 Chevy, Chevelle, Camaro w/2.56, 2.73 ratio exc P/Trac
70 All w/2.56, 2.73 ratio exc P/Trac
71 Chevelle, Nova w/2.56, 2.73 exc P/Trac

similar numbers:

my 71 dated parts book calls for 3869315 as being a case less differential gears for 71 chevelle, nova w/p/Trac w/3.07, 3.31, 3.55 ratio (Eaton ED 30140) use w/ 12 bolt cover

that is one number off what yours is ...

3869314 is for a 64-71 Corvette ... and is an Eaton 30117

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