388910

Applications
388910
0.846 BRACKET, Return spring to engine
65       Exc. F85 (Olds Parts Book)
65       F85 442 Opt. (Olds Parts Book)
66-72 V8 (Olds Parts Book)
73      All X 350 Eng. S.T. (Olds Parts Book)

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!