I've just done an axle oil change on my 2002 Suburban 1500 4x4 LT. I have the build sheet for it, it states "Locking Rear Differential $252" however, when I drained the oil it was obvious the rear axle was a 'bog' standard rear axle, which made me think the dealer had "Ripped" the original owner for $252, but when I dropped the front skid pan, the front axle was I believe to be, according to the glove box info' a G80. My question is: Is this normal, to fit a locker/limited slip to the front axle? I've asked this question on another forum and the two replies I received more or less said I was mistaken, and that G80 are only fitted to the rear. Now I'm not completely "round the bend" :lol:but I've owned the motor for two years and not had any problems, never been stuck in snow, sand, mud etc, in fact in the snow, if I hit that "Auto 4wd" button when stationary and floor the loud pedal, there's no wheel spin and the Suburban takes off as if on a dry road. So: Is it normal to have a G80 on the front? Keep Rockin' Gus in the UK.