I haven't done it but here is a link on the subject.
http://www.jeeptech.com/jeep/tech/susp/ubolt.html
My first Jeep was a CH-47 "Chinook"
83 CJ5 4.2 t176 300 4.56 33s
http://www.jeeptech.com/jeep/tech/susp/ubolt.html
My first Jeep was a CH-47 "Chinook"
83 CJ5 4.2 t176 300 4.56 33s