Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-687	Rear	1,350lbs	3/1

This is a direct heavy duty replacement for the OEM factory spring. NOTE: This is NOT the correct spring for 1995 and up Blazer, Jimmy and Bravada or the High Rider ZR2 or ZR9 models.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-687HD	Rear	1,750lbs	4/1

This is a Heavy Duty upgrade for the OEM factory spring. NOTE: This is NOT the correct spring for 1995 and up Blazer, Jimmy and Bravada or the High Rider ZR2 or ZR9 models.