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.