Qty (2) Strong Arm 6404 compatible with CADILLAC CTS 2004 To 2007 Trunk Lift Supports Struts This listing includes 2 Lift Supports For the Trunk. Extended Length from Center Mount to Center Mount is 11.50 in. Strong Arm supports use standards of high quality you can trust and use with confidence, they install easily in minutes, often times without special tools required. Includes a Limited Lifetime Warranty! Interchangable with the following OEM Numbers: 15911948,25760983,461749,6404,8196231,95322,RB8795322,SG430087