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Chrome Hash Marks Placement

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  • JohnG
    replied
    I had the same sort of problems with my '58 - the holes were just filled in with Bondo so I drilled them out (not as hard as I could do it from the inside).

    On fastening new ones, I find the whole speednut set up to be a problem in the waiting. The stud can break off or the speednut can loosen.

    A totally foolproof approach is to put some RTV on the outside around the hole, then a blob on the inside around the stud. Some masking tape to hold it in place for a few hours and you have a very sturdy fastener that does not change with vibration and can be removed if need be. The RTV also seals the hole so no moisture can get in and start a hidden rust problem.

    On the subject, if you have good hash marks with broken studs, you can drill and tap them for 6-32 threaded rod (or put a bolt in and cut the head off) - they are quite salvageable. You need a drill press to set the depth so you don't drill through to the outside!

    John

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  • GTE427
    replied
    Locations for the screw vs stud, early vs later has already been discussed in the past. No need to look any further than this thread, compare the locations on the black bird in post #4 with the gold bird in post #6. They are different, as are other TBirds from the two periods in 1960.

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  • Guest's Avatar
    Guest replied
    Thats right there are 3 diff ones. The fender gets rounder near the back. I read somewere that the ones with screws were mounted closer together or more towards the back. Have to see if I can find that.

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  • jopizz
    replied
    The stud type hash marks have three different part numbers; C0SB-28984, C0SB-28985 and C0SB-28986. It's been awhile since I replaced them, but I believe the first five closest to the front of the car are the 28984 part number; the next two are the 28985 and the last two are the 28986. If you compare them you will see the difference in curve and stud separation. Hopefully someone will correct me if I'm incorrect. I'm going by the picture in the parts manual.

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  • YellowRose
    replied
    Chrome Hash Marks Placement

    Mary ~ mvd011244 sent an email to me. Here is what she had to say.

    "Thank you so much for putting my dilemma out there and a great guy answered it great. There was another post about some of the hash marks being a different size, and holes different, I have the stud type with snap nuts, not the screw type. Does that hold true?

    I haven't got them mounted yet, but they will be this week coming up. We just got the top working, now for weatherstripping, that's the big one. We replaced both exhaust manifolds and so far, so good.
    Thanks again.
    Mary
    PS Lots of stares and thumbs up signs when we take it out. Nothing like a squarebird, yeah!!!!!!!"

    Mary, hopefully the guys who own '60 Tbirds can answer your question. I do not know if the screw on type are different in size or the holes are different. I would open the trunk, take off the driver and passenger side panel covers and see if you can tell where the holes were. If you can, put your chrome pieces up against the holes and see if the holes in the chrome pieces match up with the holes in the side panels. If they do, I would say you have the right type chrome pieces. But then comes the tricky part. Drilling the holes through the paint job without messing it up. I think someone mentioned using tape over the paint to help prevent that, but I will like to see some of our really experiences people respond to this.

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  • FINSRIN
    replied
    Thanks for pictures. Do like the look of it. Something to ponder for the 60.

    Off original topic... am wondering how tail light pannel and rear of Tbird would look if after chroming; the raised bars of squares were painted black and insides remained chrome. Opposite of normal. Have extras to chrome over Winter. Could paint them that way. Hmmm...

    Thoughts - Comments ?
    Bill

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  • Guest's Avatar
    Guest replied
    Now that saved me posting a pic thanks Richard

    Bill here's a couple more
    Attached Files

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  • Guest's Avatar
    Guest replied
    Hey Bill,
    Here is a rear picture of Richard's Thunderbird! Richard, I hope you do not mind me borrowing your pic
    Richard D. Hord
    Attached Files

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  • FINSRIN
    replied
    1960 430 AU photos

    From side view, see that you have chrome piece around tail lights going up rear of fin. Could you please post photos showing more of chrome around tail lights. My 60 is similar color and like to see more of how chrome would look.

    If did it, would not chrome original pieces. Get slavaged parts for that.

    Thanks
    Bill

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  • 60 T-Bird
    replied
    I have a complete set for a 60. You might get lucky and take out the interior side panels in the trunk. If they just bondo'd over the hole, you could back drill them...

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  • YellowRose
    replied
    Chrome Hash Marks Placement

    Richard asked when the change from screw on type rear chrome hash marks and the smooth chrome C-Pillar molding was made. According the the VTCI Official Factory Specifications (OFS) (don't have one? Get one!) the factory made the switch from screw on type rear chrome hash marks to speed nut fastened hash marks in mid-December 1959, early in the production run. The same thing applies to the smooth chrome C-Pillar molding to the ribbed version.

    I also noticed that they changed from a single screw on the headlight door at the top with a V clip at the bottom to a two screw arrangement, top and bottom later in the production run. The OFS did not say when they made the switch, except to say that early 1960 production cars had the one screw/V clip arrangement.

    Here are a couple of pix from the OFS.
    Attached Files

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  • Guest's Avatar
    Guest replied
    On the hash marks at what point did they change from screws to the nut type?
    My Golde has the screw type it's an early 60 and has the smooth roof trim. Did these two pieces go together?
    Attached Files

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  • YellowRose
    replied
    Chrome Hash Marks Placement

    Hi Don! Thank you for posting that picture! I am going to "borrow" it and put it in the Technical Resource Library (TRL) so that if the question comes up again, they will find the answer there. Thank you for taking the time to research it and measure it all out for Mary. I will send her an email and tell her to check it out. With what you gave her, she certainly should be able to get those hash marks back on the car.

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  • del
    replied
    some measurements

    Here is a picture with some measurements
    Attached Files

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  • jopizz
    replied
    The hash marks have three different part numbers because of the different curve from front to back. I believe the holes are also spaced farther apart on the last three or four. Hopefully Mary has a complete set.

    Leave a comment:

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