Others have had good things to say about OME springs too. I went for the firestone air springs myself, also from performance products, and I like them. Less expensive and lets me adjust the rear height depending on loads.
there was a recall on 96-98s I believe on the rear springs but that was quite awhile back....
Not sure about the Bilstein shocks lifetime warranty, never had any actually fail.....they are just stiff-real stiff.
A lot of folks seem to feel the 3rd gens are already plenty stiff in the back end.
I noticed when I changed to Bilsteins the ride got even firmer in the rear particularly. When I added my ARB bumper-it seemed to soften the ride down quite a bit- I had the short 99 springs if that helps.....