OTC Tools OTC 7910 GM Hydraulic Clutch Line Disconnect Tool. Damage-free way to reach and disconnect the clutch line from the slave cylinder during clutch master cylinder, slave cylinder, or clutch assembly service. Bent end works on NVG3500 manual transmissions on 1996 and newer full-size 2WD and 4WD trucks, S-1Os, and S-15 Blazers/Jimmys. The quick connect fitting on the slave cylinder is recessed in the bell housing on these vehicles. The straight end is for 1993 and newer Pontiac Grand Prix, Olds Cutlass Supremes, Buick Regals; 1993-94 Chevy Luminas; and 1995 and newer Chevrolet Monte Carlos. Similar to Kent-Moore J-42371, J-36221. .