Our 59560 stretch belt tool is made of high-quality carbon steel and has undergone heat treatment, resulting in outstanding hardness and toughness. After surface electrophoretic paint treatment, it has excellent rust resistance and corrosion resistance. 59560 stretch belt tool for gm Suitable for installation on GM 5.3L, 6.2L and 6.6L gas engines, with double-sided long and short design, used for the front and rear of the pulley to prevent damage during replacement. The short tab can be used on the main drive belt found on 2019 and newer GM.The long tab is used on the AC belt found on 2014 and newer GM trucks. 59560 stretch belt tool can efficiently replace stretching belts.Remove it before starting the engine. If you have any questions in use, please contact us in time, we will solve the problem for you within 24 hours 2-Sided 59560 Stretch Belt tool for GM for Lisle 5.3, 6.2 6.6L Gas Engines Used on Both A/C Pulley, Main Drive Pulleys