My Father and I replaced EVERYTHING. It all started because of rotted and rusty hard lines...we tore it all out. I would change over all that you can afford too - why not and it will be good for a nother 100k. Look at the tank flex line, the tank screens, the fuel lines, subframe mounts to aid alignment...the diff mount - diff fluid...etc...

Also - take the subframe out and do the work bench side...

Jake

also my bushings were a PITA - we sawsalled them out...

http://www.peachparts.com/shopforum/showthread.php?t=97305&highlight=hardlines