Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up. Details: Pinion depth shims for GM 7.5 inch, 7.625 inch, 7.6 inch IFS, 7.6 inch IRS, 7.75 inch, 8.2 inch, 1955-1964 passenger car and truck, and 12 bolt truck