u/No-Commission-8051

I have a 79 “The SG” which years ago one of the speed knobs cracked inside and is not able to attach to the actual spindle. I did replace it with an aftermarket speed knob from Amazon when it happened, which is functionally fine but the text inside differs from the originals. I am wondering if there are sellers of old parts so all 4 knobs match. Based in the UK