2001 subframe replacement procedure
 

i recently bought a 2001 alero with the 3.4. Had some wheel shake the other day and thought it was a tie rod. After further inspection i found out the subframe mount for the stearing racks weld broke off due to frame rot. I can get a newer subframe for $125 but i dont know the procedure to change it out. If anyone can help me out with this info it would be greatly appreciated. I called the deal and there records only go back 10 years.