I think they would swap, but they are different. The carrier changed fundamentally in '91 and went to smaller V-6 mini truck carrier bearings. The R&P ratios are also different. THe 80 series has a 10 tooth pinion and 41 tooth ring gear. THe 62 has a 9 tooth pinion and a 37 tooth ring gear. I don't think that the side gears of the later FZJ80s with the FF would work in an FJ62 because there is no groove for the c-clip.cruiserman said:It seems like you should be able to swap 80 rear and 62 front/rear. Both are fine spline, but '93 and later rear may be FF.