Shock question

Im wanting to replace my worn out shocks on my 1997 blazer 4x4 with some bilstein shocks. I was wondering if I could put the zr2 bilstein shock on my non zr2, and I was also wondering how these shocks were different (longer, stiffer, etc.)

Thanks

They're longer so your truck may not ride right... Blitstein makes stock height shocks for your truck...