Have you even bothered to search for prices yet ? here is a start if you havent... .. .. only replacing one?

http://www.courtesyparts.com/kb_search_result.php?keywords=[20900]+\(WD22&cPath=532_14_467_469
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2002 SE/SC R.I.P. March 2015
Bielstien's
Shrock Sliders
Reman'd engine installed 5/16/09 at 87,894 miles

Captain 38-90
Member of Fire District-38 Station-1 since 1991.
https://www.facebook.com/groups/172465012765747/
http://www.pioneertunnel.com/home.shtml