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Old 04-02-2021, 11:40 PM
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Scarebird Scarebird is offline
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Join Date: Nov 2002
Location: ABQ, USA
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Default 1969-72 convertible shoulder belts

One of the drawbacks in my eyes of the 69-72 "A"s is they do not offer a good solution for retractable shoulder belts. As I was rebuilding my 71 I mulled this over and eventually came up with this idea.

First was how and where to mount the retractor. It must control the shoulder section, not the lap belt initially. Note how modern cars do it - you adjust the lap section by a slider. I purchased a set for the front and rear from Wesco Performance. They offer many types and colors, even with licensed GM buckles.

Now where to put them... I noted that the top hinge bracket had a 1/2" hole thru it - a perfect spot for the inertial reel retractor! I wonder if GM was thinking of using this as an anchor for belts?



As you can see it fits quite nicely! I had some grommet bezels made out of nylon by 3D printing (a first for me). The came out nice. They mounted just under the upper shield. Production pieces will be a bit taller - more room for error as cutting the hole in the top "wall" is the hardest part.



A pair of prototype seat guides were cut out of steel. Production units will be 3D printed.



Floor anchor was fabbed from some scrap steel. Production pieces would be laser cut and formed, with a nice 3D printed cover to pretty it up.



Testing commenced this afternoon - a few things were learned and sorted out.
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