T187240 Shim Fits John Deere 850J, 850KOne New Aftermarket Replacement Blade Ball Socket Shim Fits John Deere 850J and 850K Crawler Dozers This shim is part of the dozer blade pivot ball and socket assembly on Fits John Deere (Fits JD) 850J and 850K crawler dozers. It seats within the blade ball socket to maintain proper spacing, alignment, and fit between the pivot ball and socket, enabling smooth blade articulation under load. Each machine requires 12 shims in the complete blade socket