I think Vol. 2 and the wiring volume are extremely useful. I rarely use Vol. 1 which is specifications, diagnostics, and maintenance info. Most of the specs are still in Volume 2, but scattered around the chapters. It's still reassuring to know that I have Volume 1 when I need to diagnose something difficult.


Jeff
2000 4Runner SR5, supercharger, rear e-locker, ARB front locker, 285/75R16 MT/R's, custom bumpers & skids
2007 Tacoma double cab 4x4 - stock