Qty (2) Camper Rear Window, Tonneau Cover Lift Supports, Struts. Suspa C16-04999 C1604999 This listing includes 2 Lift Supports for Multi Purpose Applications. Extended Length from Center Mount to Center Mount is 35.40 in. Suspa supports are Made in the USA, install easily in minutes, often times without special tools required. Displayed shipping rate apply to the contiguous 48 States only. Additional surcharge applies to PUERTO RICO, HAWAII, ALASKA & OTHER US TERRITORIES.. Interchangable with the following OEM Numbers: C1604999,C16-04999,C1613964,C16-13964