John, the 03's were a little weak around the front shock mounts on the frame... none of the Z's had a round carrier stock, so it is an aftermarket if it's round.  Good thing is there are soooooooooo many parts out there for the Z's.  I had an 05 and loved it.  Never had a problem.  I love my 09.  Great buy and another project to keep you and Landon busy.  Buy it!!