The only thing specific to SR is the locker. Otherwise any other parts of interest are the same on all 3.5L Gen2, or any Gen2 I suppose.

Yes, the front calipers are dual piston <img src="/forums/images/graemlins/kewl.gif" alt="" />

I believe the Gen2 UCAs are longer and so they help to set the camber on Gen1 trucks with cranked t-bars and the ball joint is beefier (?) <img src="/forums/images/graemlins/cheers.gif" alt="" />

'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...