4x4 steering issue - won't return to center

[GMC-YA68]

Originally Posted by BigRed76

I know you say the spindles move freely with the new ball joints, but how freely? We run into this issue on a lot of newer solid axle dodges after they get new ball joints. The new ball joints are tight enough that it causes memory steer. And as stated above usually it goes away after putting some miles on them. What brand of ball joints did you use?

They move freely enough that if I slapped them hard enough they would swing lock to lock. I torqued everything down to GM spec and used the correct spanner for the upper joint. I used MOOG on everything.