Turn signal cancel cam

[TRLAND]

Does anyone know where to get a turn signal cancel cam that will function correctly on a 67 with tilt column? It has the Boyne style switch (red) which uses a cancel cam that has the 2 bumps wider apart than the style that is sold as a reproduction. I can’t find it anywhere and I’ve tried to repair mine with epoxy to fix the cracks but it looks like the plastic is too far gone.

[GMAD_Van Nuys]

This turn signal cancelling cam is supposed to be for a 1967 Camaro with a tilt steering wheel:

https://www.classicindustries.com/product/all-years/pontiac/firebird/parts/CM5149.html?srsltid=AfmBOoqt4WjPCrnHK7zXkVcKT6yuJUKBif26M9zYlz4eSQiFYqFQX24Mwe4

[rare396bronze]

GM part number is 399294!

[TRLAND]

This turn signal cancelling cam is supposed to be for a 1967 Camaro with a tilt steering wheel:

https://www.classicindustries.com/product/all-years/pontiac/firebird/parts/CM5149.html?srsltid=AfmBOoqt4WjPCrnHK7zXkVcKT6yuJUKBif26M9zYlz4eSQiFYqFQX24Mwe4

Thanks, but that is the wrong one for the Boyne style switch. Those plastic bumps near the top are too close together.

[TRLAND]

GM part number is 399294!

Thanks but searching for that part number also finds the wrong style. I think those fit the Delco style turn signal switch. I’m starting to conclude that nobody reproduces the one I need.

[CantRepeat]

This one has them a little bit farther apart.

https://www.ebay.com/itm/154018314559

[GMAD_Van Nuys]

Seller on eBay has turn signal cancelling cam, part number 399297:

https://www.ebay.com/itm/362962859725?chn=ps&mkevt=1&mkcid=28&srsltid=AfmBOopiQ2RIktxhozUUoxdqcBEgVImLCNvO3B6ZVLSOM1yFJrIrGaBtB9E

You could ask the seller for additional photos and to measure the distance between the two bumps.

[GMAD_Van Nuys]

Recent sale on eBay for GM part 399297. Note that box is labeled 399294, but part shows 399297:

https://www.ebay.com/itm/225281671176?_nkw=1968+camaro+tilt+wheel+turn+signal+cancelling+cam&itmmeta=01J795A48WD6KY8Y9931XTWN08&hash=item3473d58008:g:ebsAAOSw9pljjQ-J&itmprp=enc%3AAQAJAAABEHoV3kP08IDx%2BKZ9MfhVJKlhXtGBNR7LuuYQ80259V%2FdUf4t7E9GBEirD92Eezfe8l1YDTNwgMDRg%2FhQuezSxbDj2KuzsfraqHH1SpRytndK5B45gTdTkKJHbWb8ASZpHLx%2BSFjZ4AjbO2LAO1jJKrNWa3LS59lbpR1NNbrc3pCUs7y8AGQm7IUXRYSGxmUIp3ZGoH2IJ%2F43OE0P5WWM3GkZ%2BnLCLDqfmQ2PCcqVxXjYgAWTz2tk%2BmTGPTYTP89mebwpn3vpG8Rg9v4hzyUMPlZIPc9zv4FDWoMHNF%2F5vkhZgdeljJR1bn4qdyf99RtqTkfEl3r7w2M8--Ctf4RK7M4nlmhcZEcF3rT5CdCf%2FuPP%7Ctkp%3ABk9SR8jEqKW6ZA&edge=1

[TRLAND]

The only number on mine is 512-4. When I get the new switch, I’m going to try getting a repro to work. The recess for the steering wheel compression spring is on the opposite side, the post that holds the horn contact is too long, and the canceling tabs are in the wrong position. But I think it might just work with some simple modifications. The exact version I have doesn’t seem to be available. My original may also still work if I can use enough epoxy to keep it from falling apart.

[TRLAND]

Someone on Camaros.net replied with the part number GM part 3901618 which appears to be the correct part for my application and appears to be available at some of the Corvette vendors. But, I got the new Boyne style switch before I saw that post and I was able to get it all working again using the incorrect cancel cam I bought by cutting the horn contact post to the correct length and putting the steering column compression spring under rather than over the cam. As expected the right turn cancels sooner than the left but that isn't a big deal and may be by design a soft right turn like merging onto a highway should cancel early anyway.

Anyway, it all works again and is like new! Thanks to all who responded.

Mike