Bilstiens, no question. If you are keeping the truck otherwise stock, get the standard Biltien replacement. Do a search for shocks and you will see lots and lots of info, but there's no question the Biltiens are the best option. They just work well in all situations and they generally last a long time.
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ChuckH
"Every morning when I wake up I know it's not going to get any better 'til I go back to sleep again!" Al Bundy