Convertible Reinforcement Plate Bolts? - Vintage Mustang Forums
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post #1 of 13 (permalink) Old 08-22-2019, 11:01 AM Thread Starter
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Convertible Reinforcement Plate Bolts?

My convertible is missing one of the bolts that holds the reinforcement plate to the two sides of the transmission tunnel under the car. (This piece: https://www.cjponyparts.com/dynacorn...1970/p/3648BB/)

Can any of you tell me the size/rating of this bolt?

I know I can buy a kit from the vendors but with shipping and all it would make for a $20 bolt. I'd rather not pay that much.

Thanks in advance.

5R08A, "298"(+.060, 6,000+ rpm), Dual Ex, T-10, FITech FI, Crane XR-i Ignition, Front Discs, Heim Jointed Struts, Spherical Bearing LCAs, Roller Perches, Arning Drop, 1" & 3/4" Anti-Sway Bars, Export & Monte Carlo, and GW Subframes.
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post #2 of 13 (permalink) Old 08-22-2019, 11:13 AM
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On the bottom of that page there is the 6 piece bolt kit for $7.99.
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post #3 of 13 (permalink) Old 08-22-2019, 11:15 AM
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Sorry, just reread your post. You’re only looking for one bolt. Can you remove one of the other ones and take to an auto parts store?
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post #4 of 13 (permalink) Old 08-22-2019, 11:25 AM
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It is unusual with with that big 1.25 diameter washer. 3/8-16 thread. Looks like mine scraped a speed bump or two.




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post #5 of 13 (permalink) Old 08-22-2019, 11:27 AM Thread Starter
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Thanks for the info. Also the kits don't seem to include the washer. :-(

5R08A, "298"(+.060, 6,000+ rpm), Dual Ex, T-10, FITech FI, Crane XR-i Ignition, Front Discs, Heim Jointed Struts, Spherical Bearing LCAs, Roller Perches, Arning Drop, 1" & 3/4" Anti-Sway Bars, Export & Monte Carlo, and GW Subframes.
Victory Red, Hood Scoop, Eagle 192 Wheels, Power Antenna, Factory Style Luggage Rack, Glass Rear Window, White Int. w/ Black trim, Right & *Left* Turn Indicators, Rally Pac Style Voltmeter & Tachometer, Cruise Control.
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post #6 of 13 (permalink) Old 08-22-2019, 11:33 AM
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Not only that, but I noticed that the Repro Bolts don't include the correct Huge large washers....

)

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post #7 of 13 (permalink) Old 08-22-2019, 11:41 AM
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Convertible Reinforcement Plate Bolts?

I believe the bolts used to mount the door hinges to the body
of a 1965 are the same.

Last edited by mst4evr; 08-22-2019 at 12:10 PM. Reason: I used 1965 bolts which are different than 1966.
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post #8 of 13 (permalink) Old 08-22-2019, 11:58 AM
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"I believe the bolts used to mount the door hinges to the body
are the same. "


I don't believe they are......and '65 and '66 also used different size Door hinge Bolts between the two years. '66's actually used smaller diameter bolts than '65's did. A fact that most don't know.

)

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1966 Mustang Sprint 200 Registry Owner/Moderator
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post #9 of 13 (permalink) Old 08-22-2019, 06:02 PM Thread Starter
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I'm thinking that these bolts might be a close substitute. https://www.globalindustrial.com/p/f...-unc-pkg-of-25

and possibly these washers. https://www.albanycountyfasteners.co...r-washers.html

Opinions?

5R08A, "298"(+.060, 6,000+ rpm), Dual Ex, T-10, FITech FI, Crane XR-i Ignition, Front Discs, Heim Jointed Struts, Spherical Bearing LCAs, Roller Perches, Arning Drop, 1" & 3/4" Anti-Sway Bars, Export & Monte Carlo, and GW Subframes.
Victory Red, Hood Scoop, Eagle 192 Wheels, Power Antenna, Factory Style Luggage Rack, Glass Rear Window, White Int. w/ Black trim, Right & *Left* Turn Indicators, Rally Pac Style Voltmeter & Tachometer, Cruise Control.
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post #10 of 13 (permalink) Old 08-22-2019, 08:54 PM
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You should be okay going to the local auto parts or hardware store and getting a one inch long 3/8-16 body bolt.
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post #11 of 13 (permalink) Old 08-22-2019, 10:30 PM
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I agree with Woodchuck. I had to replace one of mine. Got a grade 8, 3/16 bolt, washer and lock washer at the hardware store. Way I figured it, if 3 of the 4 are OK and holding the plate where it belongs, the 4th, as long as it's strong and tight enough, should hold things together. Mine has been installed this way since 2016. No issues.

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post #12 of 13 (permalink) Old 08-26-2019, 02:02 AM
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I bought the kit for my 67 from NPD and they have the large washer integrated
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post #13 of 13 (permalink) Old 08-26-2019, 02:14 AM
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Here are the ones I bought

https://www.npdlink.com/product/moun...0001%26year%3D

Item # 010962-1AK

AMK bolts
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