Does anyone have a list that shows what the model codes listed on seat belts represent. For example my 68 GS has a model code listed on one of the tags of 630 and another has 631. I know how to read the date codes but not the model code and all of my extra bets have late 67 early 68 date codes. I have a bunch of extra belts that have various codes and I would like to find out what they are for. examples: 330, 335, 377, 530, 531, 577, 131, 177, 630 631.
