ZJ pitman arm is used in US as its longer and therefore if you do hi steer mods you'll still get full lock left to right..... something I never had on the YJ .........
I found all this out after selling axles and going 1 ton............
I then decided to go full hydro..........
So I have a ZJ pitman arm drilled for 1 ton tre (tie/track rod ends) and weld in tube ends for 1 ton tre s if they are of use to anyone