Hi guys, I am assembling the seat belts and noticed the belt that fastened to the top seems to be missing something. To me if I tighten the bolt down it is just going to crush the plastic. Am I missing something?

 

 

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On my 7'70 the bolt does tighten onto the plastic with a stack steel and plastic washers like in these pictures.  My interior is currently out but I believe the order of washers is correct. Even when the bolt is tight I can swivel the metal part of the seatbelt with some resistance.

Hope this helps.

 

Yep this helps. Now just to locate a plastic washer like that :)


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Let me know if you would like dims for that washer. I have not re-assembled it yet. 

Measuring it would help a lot thank you


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When I measured the plastic washers and bolt I learned that the bolt is not metric, it's 7/16-20 UNF.  Probably to meet federal safety regulations at the time. Also there are two plastic washers, the they both have centering pilot that goes into the metal body mounting bracket and the body side washer is threaded, 7/16-20 UNF.  Here is a drawing, best I could measure, and a couple of pictures.  The two steel washers are 24mm OD x 11.5mm ID x 2.3mm thick and the 7/16-20 UNF bolt is 1.7" long. The reddish fibre washer is about 20mm OD x 11mm ID x 0.6mm thick and has internal serrations. These parts are from my 7'70 so they would come with a safety belt set, part number 86800-E4100 that was used up to 11,71

 

SAFETY BELT WASHERS - 86800-E4100.pdf

Thank you the info is very appreciated


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