The ICON 3* Lift Rear Coil Spacer Kit is used as part of the ICON 6* Lift Performance Suspension System for the 2022-2023 Toyota Tundra and allows the OE rear coil springs to be reused to obtain the required rear lift at a lower cost while still allowing the option to upgrade to ICON Triple Rate Rear Coil Springs in the future. These high-quality spacers are fabricated from CNC laser cut steel and powder coated with a semi-gloss black finish. The ICON 3* Coil Spring Spacer Kit is used as part of the 6* Lift Suspension System for the 22-23 Tundra. Allows the OE rear coils to be reused to obtain lift while still allowing the option to upgrade to ICON rear coils in the future. TECH NOTE: Requires additional components to complete system. DO NOT attempt install without part numbers 51010, 51011, 51012, 51014, and 51017.