Quote:
Originally Posted by PT'S 70 CST
So the part # does not matter it is just the way the hook bends out at the end that does make the difference in a LH or a RH. I guess what I am asking is that a LH and a RH hook could both have the part #3663349-50 on them. PT
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Here is some more quoted info on the 60-68 hook casting p/n's from post #10 of the below linked thread from earlier this year. Mel 
"You have it right in that you are looking for a LEFT hook as your above pictured pair are both RIGHTS, your pictured part numbers are casting numbers found on both LH/RH hooks. The same 60-68 hooks can also be found with the casting P/N 596369-70 on both of the LH/RH hooks. I just went back into an old parts book and found P/N 3663350 listed for the left side and then P/N 3663349 listed for the right side, but I have the two RIGHT HAND NOS ones with original GM labels with P/N 3663350, and again they are both RIGHTS. I am thinking that because the book has them listed as 60-68 GM trucks in general, maybe on the 60-66's use the 3350 on the LH side and the 3349 on the RH side? Mel"
Hook thread link: http://67-72chevytrucks.com/vboard/s...d.php?t=507466