I have a front and rear ring & pinion in 4.30, from an '86 4Runner... 8" 4cyl rear, and 7.5" standard rotation front. No damage. I'll throw in the perfectly good bearing for free, my gear guy forgot to press it off.
$125 shipped anywhere I can send a flat rate box.
Also selling a set of coil springs, Black Magic brand 14" 125 lbs, these lifted the rear of my truck roughly 2 inches over stock, prox 3 inches total. $50 shipped in a flat rate box.