I got 2 marlin Split case crawl boxes. One in my FJ62 behind a 700r4 to an FJ62 split case and one in my FJ40 behind an H41 with an FJ60 Splitcase. They are awesome! Gears are good.. With an FJ60 tranny you have a 19 spline output so all you need to do is cut your tranny tailshaft off shorter, put a clamp collar on, the adapter plates and go. One little bit of info I can give you since your using a part of the tailshaft that has never been used before it's a tad tight.. I grabbed the input gear and spun it with my hand and used emory cloth to clean it up for a few seconds before it just fit perfectly into the input gear on the toybox. Watch clearance for your reverse switch but and FJ60 reverse switch fits.. That's what I'm using on my FJ40 but it's wired backwards for my 40 but will work for you! Ask away! Spend the $4 on the heavy duty detent spring and get the 4.7's and don't look back.. Don't get the 4.7's if you have an auto tho, just with a stick.