Dear Bill, Loren, and mid-60s Buick caregivers,
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I made up some bad words today LOL... ws

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Isn't it great how working on classic cars brings out the creativity in all of us! . . . . .

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So whats the secret to disassembling the buckle? Both of the fronts(maybe the rears too?) are in the last known position from 38 years ago!
So did your car have rear seat belts? Biquette certainly didn't. Dad bought some aftermarket belts probably around 1970 for us kiddies.
Ive tried to relieve the pressure by pushing in one and then both tabs to no avail. The release part is good with the half that you lift to release, but towards the secure side looks like a trap door (with the tri-shield) that will either open, or slide back 1/8". I can just move them with a screw driver and dont want to damage either one.
What are you trying to get dismantled? Is the problem that the belt webbing is stuck in the last setting of 38 years ago? Here is a side view of Biquette's original seat belt buckle:

I believe the outer plastic case is held by the large rivet at the right. I don't know how you could remove it. Perhaps some one else knows how.
If the problem is the webbing perhaps you can work the fabric free. The mechanism is probably the same as Biquette's:

You might be able to get some lubricant in between the outer casing and the inner steel structure that has the sliding adjustment.
There is a lot of safety information printed on the back of Biquette's buckle. Here is a photograph of that for posterity:

Even if this isn't a that helpful perhaps it will stimulate a more constructive suggestion from another board member.
Cheers, Edouard
