I've researched this using the most important feature here at Mud.. the search feature. I have seen a few threads with a little information in it.... but would like to find someone that could explain this process. I know you have to outboard the spring.. but that doesnt really mean anything other than moving the spring outside? I am putting 60 axles under my 64 FJ45LV I assume I keep the old springs from the 64 axles and put them on the 60 axles. What about the drive shafts? Do I keep the 45's or use the 60's? Will the 60 series axle / transfer case line up for the mechnical winch? I know, its a ton of questions... but now there will be a 45-60 axle title to search. Any help greatly appreciated. Thanks in advance!