Grover® Machine Head Lifetime Warranty Our warranty covers failure as a result of a manufacturing defect on Grover® Machine Heads. It does not cover normal wear and tear, including washers, tarnishing or wear-through of plating, or damage not because of normal use. It also does not cover tuners purchased through unauthorized dealers, 3rd party resellers, or in unauthorized Grover® packaging. For discontinued tuners, if possible, we will repair, or replace the item with a current, comparable model. The warranty is non-transferrable. *G2™ Grover machine heads are not covered under Grover’s Lifetime Guarantee. G2™ Grover machine heads can be recognized by the Grover name in upper- and lower-case lettering (Grover). If you have a defective Grover® Machine Head that was purchased new in authorized Grover® retail packaging, or as part of an authorized instrument, it may be returned for repair or exchange with proof of purchase. Please submit a request through our warranty submission page at https://grotro.com/warranty/ for prior authorization. Upon authorization, if within the USA, please include a check or money order for $7.50 (shipping and handling) payable to Grover Musical Products. We also accept PayPal. We may request the defective part(s) to be sent for repair or further inspection. *If outside the USA, the amount will differ, and we will advise the best international shipping rate accordingly* Grover Musical Products 9287 Midwest Avenue Garfield Heights, Oh 44212 *Please note, we always recommend consulting an authorized luthier whenever installing hardware or making any modifications to your instrument.