3849698

Applications
3849698
0.796  SPRING,retaining(4 1/16" dev.length)
57-65  Corvette
66       Corvette (427) W/SP. H/PER.
75-81 Corvette
62-67 Chevy II
73-75 All (350) (Chevy)
75      Nova, Camaro (6 cyl.)
75      All X L6 S.T. (Olds)
75      All (exc. H) (Pontiac)
76-78 A,X W/M.T. (V8) (Olds)
79      All (305,350L) (Olds)
78-78  A,X (6cyl) (Olds)
76-79  A,X (231) (Buick)

History:
3849698 use 12337938

Disclaimer:
Factory correct applications are your responsibility. GM made part and part # changes with no rhyme but a reason (no production interruptions at any cost).
Application charts are for replacement parts that were available at the time of parts book printing, and when possible model specific assembly manuals.
My observations come from the parts I have in my collection or other reliable sources your parts may differ.
If Factory correctness is your goal, do more research, join car clubs,
 forums and buy an assembly manual if one is available for your Project Car (you wont be sorry).
This is a fun and interesting part of the hobby!