Shakespeare 414 Shim Kit for 4186, 4187 & 3187 Shakespeare 414 Shim Kit for 4186, 4187 & 3187 Shakespeare Shim Kit for 4186, 4187 and 3187 Rachet Mount. Kit includes Four (4) Shims, two (2) with front/back slope and two (2) with side/side slope. Each shim adds a half-notch (5°) tilt. SKUSS414 MAN#414 ID#: 3645 Our Price: $9.95 Availability: In Stock Condition: Brand New Add to cart We’re sorry for the inconvenience, but please know we are working hard to replenish stock and fill backorders. Global shipping constraints and other material shortages have slowed the supply of products in many industries, including GPS and Marine electronics. We update the Estimated Shipping Date on our website in real time, so feel free to check back frequently. Thank You for your patience and for shopping with The GPS Store, Inc.