1. REAR POSITION LEAF SPRING SHACKLE KIT As time goes by, the metal on the spring shackle will slowly fall off and rust, which will eventually cause the spring shackle to fail. It is recommended to replace lower spring shackles in time. Spring shackles bracke manufactured from durable steel and powder coated for corrosion resistance and a long life 2. COMPATIBLE WITH FOLLOWING VEHICLES Leaf Spring Shackle Kit fit for 1995 2005 Blazer 1994 2004 S10 1994 2001 GMC Jimmy 1994 2004 GMC Sonoma 1994 2001 Oldsmobile Bravada, please check the fitment in the product description below 3. REPLACE PART NUMBERS 722 028 15665302 K150382 M1755 3F1000. 1 pair Rear Leaf Spring Shackle kit. Easy to install, without instruction. Please check the part numbers whether it suits your vehicle before purchasing. 4. OEM DESIGN DIRECT FIT Quality materials advanced technology used, meets or exceeds OEM standards. Even though this is not a genuine GMC Leaf Spring Shackle Kit, but it works even better and lasts longer. Save yourself times and money by replacing Leaf Spring Shackle Kit on your GMC Sonoma yourself.