Pioneer G1540B Base Arm for 8'-15' length Side Mount, Left Side, 1/2". Fits Pioneer G1500 and G1500D, and EDD 1500D. 1/2" spring diameter. Coil diameter is 5.5".#G1540B Wastequip Drivers Side Base ArmSKU: 115$181.83PriceExcluding Sales TaxQuantityAdd to Cart