Okay, this thread is making my head hurt.
The GVs upt to 2004-05, whenever the platform changed, all use the same carrier as the 12-bolt kicks.
LIKE I SAID, MY 2000 V6 GV HAS AN ARB IN IT AND THERE IS NOTHING DIFFERENT THAN A KICK. THE GV 4.30 AND 4.88 GEAR WILL FIT THE ARB.
There, is that clear enuff for you? The axles are 26 spline 1.06" diameter, JUST LIKE THE KICK AND SAMURAI. Am I clearer now?
In fact, the rear diff sidegears FIT INTO A SAMURAI CARRIER, so a 1510 Lock-rite will fit, using stock sidegears and not the lock-rite couplers. How do I know they fit in a Samurai carrier? I've got them in the front of my Sammy.
Now, stop fretting. If you want a rear locker and you have a I4 or a V6 GV, then order a 12-bolt ARB, a 12-bolt LSD or a 1510 lockright and be done with it.
Now for the XL7, you're screwed. However, it is possible that the XL7 shares the same carrier as the Mistu Montero, as ARB lists the to as 28spline and the same diameter. Since I don't have an XL, I'm not going to be the one to find out.
BTW - the pic that circulates the web showing the Sammy, Kick and XL diffs side-by-side is my pic. Since I had my hands into all 4 different rear ends (Sam, Kick, GV and XL), I might just have a little insight here.