That's what I'm wondering about, what deos it take to put in the spool, do I have to completely reset the third after I pull the carrier or can  I just pop it out and throw in the spool I've pulled the 3rds from the axles before that's not the prob, just the labor involved with installing the spool if I have to set it up all over agian I may just weld it or have it done if it;s not to expensive