MANUFACTURER PART NUMBER: R38RS55263. Replaces Part Numbers & Specifications PRODUCT TYPE: SHOCK ABSORBER AND STRUT ASSEMBLY. SIERRA 1500 DENALI 8 CYL 6.2L 2007 WITH FRONT COIL SPRING. SIERRA 1500 CLASSIC SL ALL ENGINES 2007 WITH FRONT COIL SPRING, WITH 0 IN.