gauge sizes and problems.

ok so i saw this nice site for customized gauges… but they dont make gauges for the g2…i was wondering if modifieing a g3 custom gauge would work…or if it would for some reason fit without modification. Some info from you guys would be greatly appreciated…like the difference between a g2 and g3 gauge cluster…etc…thanks in advance-jon

bump someone please

these guys will make anything you want