GM Hydraulic Clutch Line Disconnect Tool This is a versatile tool for disconnecting clutch lines when you’re working on clutch assemblies or slave and master cylinders. The bent end, intended for NVG3500 and NV4500 manual transmissions, works on 1996 to 2004 full-size 2WD and 4WD trucks, Chevrolet S-10 Blazer, and pickups. The straight end is for 1993 to ‘94 Chevrolet Lumina sedan, 1995 to 2000 Chevrolet Monte Carlo, 1993 to ‘99 Buick Regal, 1998 to 2002 Olds Intrique, 1993 to ‘97 Olds Cutlass Supreme and Pontiac Grand Prix. No. 7910 – GM hydraulic clutch line disconnect tool.