All CRU Brand parts come with a Lifetime Warranty (Excluding Differentials and Brake Pads). Fits: Lots of Hondas, Including 88-00 TRX 300 Description: Pinion shim Size: OD 32mm /ID 22.65mm / 1.0mm Thickness CRU Shims are made to exact oem specifications. Most sizes are thinner so we can fit a larger application into one shim and still keep costs at rock bottom prices. Returns: If you receive an incorrect item you must contact us within 30 days. If we have made a mistake you will receive a 100% refund including all shipping charges. If you purchased the wrong part or just don't need it anymore you can return it. There will be a 20% restock fee applied to the selling price the buyer is responsible for shipping charges.