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Old 04-20-2018, 04:15 AM   #1
DransportGarage
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Request for Picture - '55 2nd Series Front Bumper Bracket

I need a picture of a long side front bumper bracket as-installed. I have the brackets but I had filled the mounting hole when I boxed the frame.

...and yes, it's going to be interesting to get a nut on the inside of the boxed frame. After drilling the thru hole, I suppose I'll goop the nut up with J-B Weld, tape it to a stick, put it in place and use a bolt to hold it there until it nearly dries.

See how nice and pretty -- and non-functional I made it?

Thanks in advance,
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Last edited by DransportGarage; 04-20-2018 at 04:23 AM.
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Old 04-20-2018, 06:43 PM   #2
dsraven
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

I have those dimensions at home so I can get them.
how about using a long nut, like used on threaded rod, accessible from a through hole in the frame from the outside, like a hole was drilled right through, then enlarged to fit a nut through.
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Old 04-20-2018, 07:43 PM   #3
DransportGarage
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

Quote:
Originally Posted by dsraven View Post
I have those dimensions at home so I can get them.
how about using a long nut, like used on threaded rod, accessible from a through hole in the frame from the outside, like a hole was drilled right through, then enlarged to fit a nut through.
Don't worry about dimensions if it's a hassle, but they'd be nice to have. I'll just bolt the bracket to the bumper and swing it over to the frame. I just would like to see the elevation of the original hole in the frame in a picture.

Interesting idea on the long nut. We'll see once I dig in...
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'55 3100 (383/700R4)--'55 Belair Sedan (350/4-speed)--'64 'Vette Conv. (327/4-speed)--'68 GTO Conv. (462/4-speed)--'69 Cutlass Conv. (350/TH350)--'06 'Vette Conv. (LS2/6-speed)
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Old 04-20-2018, 08:10 PM   #4
dsraven
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

here are a few pics, sorry, the square was upside down so you get metric. google can help translate if required.
looks like 2" apart though.
I think the bracket is supposed to attach to the inside of the channel. you may have some messing around to get the brackets to fit a boxed frame. might be worth fabbing some new brackets or simply cut the boxing out of that area.
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Old 04-20-2018, 08:12 PM   #5
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

looks like 7/8" in from the front edge of the frame and the 2 holes are midline in the frame channel.
help?
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Old 04-20-2018, 08:16 PM   #6
dsraven
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

looks like the center of the bottom hole is 1 1/8" up from the bottom.
help?
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Old 04-20-2018, 08:18 PM   #7
dsraven
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

sorry, are you talking about the bumper corner braces? after reading it sounds like it.
don't have those pics.
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Old 04-20-2018, 08:32 PM   #8
DransportGarage
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

Quote:
Originally Posted by dsraven View Post
sorry, are you talking about the bumper corner braces? after reading it sounds like it.
don't have those pics.
Yup. The corner braces. I should have used the word "corner" instead of "long". Sorry you went thru the hassle.

You're right about the small (center) bracket attaching on the inside of the frame. It appears they did that so they could tolerate a larger radius in the bend.
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"It won't take long and it won't cost much."
'55 3100 (383/700R4)--'55 Belair Sedan (350/4-speed)--'64 'Vette Conv. (327/4-speed)--'68 GTO Conv. (462/4-speed)--'69 Cutlass Conv. (350/TH350)--'06 'Vette Conv. (LS2/6-speed)
Bob's Retirement Build - My 55 TF
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Old 06-08-2018, 11:33 AM   #9
DransportGarage
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Re: Request for Picture - '55 2nd Series Front Bumper Bracket

I've been pretty busy working on body prep for paint but I did get around to fixing this problem this morning.

When I looked into the frame I realized that the weld I had put in to close the hole had left a really bumpy welded surface. Gluing a nut inside the frame was out of the question, so I rounded and beveled some 1/2"-13 nuts to a little less than 7/8" O.D. (Pic 1). Then I cut a 3/4" hole, enlarged it with a carbide bit for plug fit and beveled it. I welded in the nut, used a double layer of tape as a grinding guide, ground it off, brush-primered and painted it, mostly for corrosion control (Pics 2-5).

I dabbed the repair with a wet rag between every weld to minimize damage to the paint. I could have fully filled the bevel, but that would have risked bubbling the paint. It's plenty strong. The repaired area will easily be covered by the bracket.
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"It won't take long and it won't cost much."
'55 3100 (383/700R4)--'55 Belair Sedan (350/4-speed)--'64 'Vette Conv. (327/4-speed)--'68 GTO Conv. (462/4-speed)--'69 Cutlass Conv. (350/TH350)--'06 'Vette Conv. (LS2/6-speed)
Bob's Retirement Build - My 55 TF
Bob's 700R4 Build (how-to)
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