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Old 03-22-2020, 05:31 PM   #1
dmaxweb
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Default 30 - 31 Coupe Spare Tire Support Bracket

Brattons part #1970 states for 30/31. What was used for 29.
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Old 03-22-2020, 06:06 PM   #2
SteveB31
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

Just the vertical brace in the middle behind the outer panel.
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Old 03-22-2020, 06:17 PM   #3
wrndln
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

I assume dmacweb is referring to a rumble seat 28/29 coupe. Steve, are you positive the 28/29 coupes or roadsters didn't use the part shown in the first post? I have a 28 roadster that is going to have a rumble seat and a rear mounted spare. I need to know for sure whether the part is or isn't used on the curved inner panel.
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Old 03-22-2020, 06:47 PM   #4
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

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Just the vertical brace in the middle behind the outer panel.
Thanks Steve.
It turns out my 30 coupe has all 29 rumble parts.
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Old 03-23-2020, 11:53 PM   #5
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

I removed this bracket from a '29 Coupe rumble seat car...
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Old 03-24-2020, 06:08 AM   #6
Steve Plucker
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

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Quote:
Originally Posted by dmaxweb View Post
Brattons part #1970 states for 30/31. What was used for 29.
Same thing.

Pluck

Last edited by Steve Plucker; 03-24-2020 at 06:38 AM.
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Old 03-24-2020, 06:37 AM   #7
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

Quote:
Originally Posted by wrndln View Post
I assume dmacweb is referring to a rumble seat 28/29 coupe. Steve, are you positive the 28/29 coupes or roadsters didn't use the part shown in the first post? I have a 28 roadster that is going to have a rumble seat and a rear mounted spare. I need to know for sure whether the part is or isn't used on the curved inner panel.
The part in question in post one is also used for 1928 Roadster with rumble seat.

The repro part is aluminum...the original was steel...get an original as it already has the the holes for the rivet atachment to the rear floor pan.

Pluck
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Old 03-24-2020, 07:16 AM   #8
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

In my case, it's a '30 coupe but has '29 rumble parts. The curved inner panel does not have the hole for the brace bolt to the spare tire carrier. The radius curve of the repro aluminum brace does not fit tight to the curved panel. It's possible the inner curved panel is a repro and/or the curve of the repro brace differs from an original. I don't have an original brace to compare to the repro. If need be, I can get one but at the very least, that will require cutting a hole in the inner panel.

This all started when I just recently noticed the spare carrier did not seem solid to the body. When I checked, the bottom of the vertical bracket was not connected. I put in a couple of bolts and obviously it's much more solid now. That's when I noticed it did not have the curved brace. Before buying parts and doing mods, I'd like to know if the brace is really needed in my situation. Even with the bottom of vertical bracket loose, the spare has not fallen off since I've had the car. It's a driver and my inclination is to not add it.
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Old 03-24-2020, 08:04 AM   #9
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

I have it from good sources that original curved inner panels have a "depressed" area near the upper part of the curved inner panel near the vertical bracket inside the panel below the lid. This changes the curve of the curved inner panel to fit the curved bracket and lineup with the hole in the vertical bracket inside the outer panel below the lid. This is to better align the curved stiffener/panel to the hole for the upper bolt that attaches the spare tire carrier. Repro panels don't have either the square hole cutout for the bolt spare tire bracket or the depressed area. It would require some work to add the depressed area and properly cut the square hole. I believe like several others here, ALL coupe and roadsters with rumble seats SHOULD have the curved bracket riveted to the panel to provide better support for the spare tire.
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Old 03-24-2020, 08:12 AM   #10
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Wink Re: 30 - 31 Coupe Spare Tire Support Bracket

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Originally Posted by wrndln View Post
I have it from good sources that original curved inner panels have a "depressed" area near the upper part of the curved inner panel near the vertical bracket inside the panel below the lid. This changes the curve of the curved inner panel to fit the curved bracket and lineup with the hole in the vertical bracket inside the outer panel below the lid. This is to better align the curved stiffener/panel to the hole for the upper bolt that attaches the spare tire carrier. Repro panels don't have either the square hole cutout for the bolt spare tire bracket or the depressed area. It would require some work to add the depressed area and properly cut the square hole. I believe like several others here, ALL coupe and roadsters with rumble seats SHOULD have the curved bracket riveted to the panel to provide better support for the spare tire.
You are so right on that one Rusty! You couldn't of said it any better than that!
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Old 03-24-2020, 08:14 AM   #11
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

I could be wrong but I seem to recall the stamped depression was added to compensate for the switch to the tall (9") rear panel. Mine has 7" panel.

Either way, everything is assembled and painted so taking panels apart is not a viable option.

Last edited by dmaxweb; 03-24-2020 at 08:53 AM.
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Old 03-24-2020, 03:00 PM   #12
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

Could be mistaken, but I believe that the curved "banana" brace was used on all rumble seat equipped vehicles except for those produced in the first couple of months in 1928.

I doubt very much that you have the short version of the outside panel on a 30-31 coupe. The panel needs to be measured on the outside of the body, as it's impossible to measure the total height on the inside when the inner panel is in place. I think originals were about 9-1/2" measured on the ends and about 1/4" taller in the middle.
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Old 03-24-2020, 05:30 PM   #13
Kevin in NJ
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

All rumbles used the same part. The original curved inner panel would have a square hole for the bracket.

You should not need to buy the repro it is a fairly common part out in the wild. A good curved inner panel is a different story.

The repro curved panel is not right in many directions. You will have to adjust the position so the bracket mounts tight to the lower rear panel. If not then you will distort the panels when you bolt it together. I needed to beat a bulge into my repro panel to get it to the right position.

https://www.cabriolet.piklefactory.com/Rumblelid.htm
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Old 03-24-2020, 07:16 PM   #14
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

Are the originals forged steel?
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Old 03-24-2020, 07:35 PM   #15
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

dmaxweb wrote:

I could be wrong but I seem to recall the stamped depression was added to compensate for the switch to the tall (9") rear panel. Mine has 7" panel.

Either way, everything is assembled and painted so taking panels apart is not a viable option


Me

I believe you are correct in that the shorter 28/29 coupe panels below the lid didn't need a depression in the curved inner panel to line up the banana bracket with the hole in the vertical bracket. However, Randy in ca wrote: a 30 coupe has the tall lower panel. I agree with him, 30 coupes definitely have the taller 9 1/2" panel.
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Old 03-24-2020, 07:51 PM   #16
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

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Are the originals forged steel?
Yes!
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Old 03-24-2020, 08:09 PM   #17
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

...

Last edited by dmaxweb; 04-06-2020 at 06:07 AM.
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Old 03-26-2020, 08:53 PM   #18
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

Is the inner curved panel only held in place by machine screws/nuts? The rumble lid is still on so it's hard to get pictures.
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Old 03-26-2020, 09:56 PM   #19
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

Quote:
Originally Posted by wrndln View Post
dmaxweb wrote:

I could be wrong but I seem to recall the stamped depression was added to compensate for the switch to the tall (9") rear panel. Mine has 7" panel.

Either way, everything is assembled and painted so taking panels apart is not a viable option


Me

I believe you are correct in that the shorter 28/29 coupe panels below the lid didn't need a depression in the curved inner panel to line up the banana bracket with the hole in the vertical bracket. However, Randy in ca wrote: a 30 coupe has the tall lower panel. I agree with him, 30 coupes definitely have the taller 9 1/2" panel.

My '30 coupe has a '29 lid. It also has the round tube rear bumper brace used thru '29.
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Old 04-06-2020, 06:11 AM   #20
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Default Re: 30 - 31 Coupe Spare Tire Support Bracket

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