I've got a '72 FJ40 that has not been converted to disc brakes. I've also got a '78 that is basically for parts. I'm considering swapping out the entire front axle assembly on these 2 cruisers in order to economically get disc brakes on the '72. After a quick look, everything looks pretty much the same. I haven't checked the ratio, but I'm assuming they both have 4.10 gears. (I'm certain they are both original from factory) Is there anything I should be aware of that might not work out? Thanks, in advance, for the help.