66 Cyclone Gt Convt

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Re: 66 Cyclone Gt Convt

Postby 67Cougar » Thu Mar 08, 2018 7:08 pm

Hi again,
Thanks for the photo, explains a lot.
Mine has a large threaded hole in the bottom of the frame behind the rear spring hanger as well.
I'm not sure how clear that is in my earlier photo.
Is that also part of the weights or something else?

Derek
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Re: 66 Cyclone Gt Convt

Postby Lip Ripper » Fri Mar 09, 2018 3:11 pm

I'm down in the back and can't get that low right now. Try and post a photo.
66 Cyclone GT; 245/60R15's on 15x8's and 215/70R15's on 15x7 Magnum's.
There's nothing like the sound of a pushrod V8 singing at the top of her lung's.
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Re: 66 Cyclone Gt Convt

Postby 67Cougar » Wed Mar 14, 2018 5:37 am

Hi again,

Frame 1 photo is of the two holes behind the rear spring hanger.
They are not threaded as I first thought but are in the underside of the frame and have 3/8" plate reinforcing inside the frame.
The round hole is about 3/4" diameter and the oblong one is about 1 3/4" long and 3/4" wide.
Frame 2 photo is of the hole in front of the rear spring hanger.
It is in both sides of the frame and has relatively thin reinforcing sheet inside the frame.
It is about 1 1/4" long.
Could theses be associated with the counter weights?
Or maybe associated with a trailer hitch (whet we would call a towbar in Aus)

Hope this helps rather than further confuses the issue.

Regards,
Derek
Attachments
Frame 2.JPG
Frame 2
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Frame 1.JPG
Frame 1
Frame 1.JPG (122.58 KiB) Viewed 247 times
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Re: 66 Cyclone Gt Convt

Postby Lip Ripper » Wed Mar 14, 2018 5:58 am

I think those are simply locating holes for manufacturing.
66 Cyclone GT; 245/60R15's on 15x8's and 215/70R15's on 15x7 Magnum's.
There's nothing like the sound of a pushrod V8 singing at the top of her lung's.
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Joined: Wed Jun 06, 2012 4:47 am
Location: Lake Placid, Florida

Re: 66 Cyclone Gt Convt

Postby A/FX » Wed Mar 14, 2018 6:18 am

Lip Ripper wrote:I think those are simply locating holes for manufacturing.


When the cars were left the factory either by rail or truck transport they were secured by chains, the end of the chain had a “hook” that fit into those holes. This made it easier and faster to secure them and eliminated the chance of the worker wrapping a normal chain around something that was not designed to hold the car during transport. ( rear end housing, exhaust pipe, sway bar, shock absorbers)
Later vehicles used stamped steel plates for the chains to attach to that were bolted to the frame/sub frame, these were sometimes left in place or removed by a dealer or tow hitch installer. (That is why restoration people pay good money for the correct plates today)
Jim
'64 Cyclone
A/FX
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Re: 66 Cyclone Gt Convt

Postby poboyjo65 » Wed Mar 14, 2018 1:10 pm

Lip Ripper wrote:I think those are simply locating holes for manufacturing.

the shackle bushing sleeve is welded to a piece of metal shaped like the frame about 6-8 inches long & sits inside the frame to reinforce the whole area for the shackles. the holes are line up holes for this piece,which had to be put on the frame before it was put on the floor. if you look close you can see the edge of it sandwiched between the frame & bottom of the floor on pic 2.I had to rebuild this piece with new metal on my 65. I know yours is a 66 but it is probably similar.
I welded up those holes on mine to keep dirt out.
view from above without floor;
Image
Image
347, 4sp, 9''
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Re: 66 Cyclone Gt Convt

Postby 67Cougar » Fri Mar 16, 2018 3:58 am

Thanks everybody.
You blokes sure know your way around these cars.

Derek
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Re: 66 Cyclone Gt Convt

Postby poboyjo65 » Fri Mar 16, 2018 12:42 pm

67Cougar wrote:Thanks everybody.
You blokes sure know your way around these cars.
Derek


It's always interesting to learn new things about them. like what AFX Jim said about the transport chains. but it makes sense since those holes are reinforced. I cut up a partscar for parts & cut mine up pretty good but never would have known that if he hadn't mentioned it. I had heard & seen pics of the plates he mentioned. At least some of the early years had those too , bolted to where the bumper mounts are attached to the frame
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347, 4sp, 9''
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