Probably everyone but me already knew this, but just in case. Koni sells mounting hardware kits for the 80-1781 and 80-1551 shocks used in Spiders, etc. According to Koni, one kit will replace the bushes and hardware on one shock. The hardware kit part number is 70 50 15 118 0. Each kit is $15.19. They say the same hardware kit is used for the 80-1781 and 80-1551, so I assume that the kit doesn't include the pressed in bushing on the 1551. Apparently it is not a stock item and lead time is 4-6 weeks from Holland. I have a couple of shocks with missing bushings, so I was happy to see this.