Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
34-1405	Rear	1,800lbs	4/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
34-1451HD	Rear	2,200lbs	4/1

This is an upgrade for the stock 4 leaf spring. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-818	Front	2,630lbs	2

This is an upgrade from the stock springs on the Excursion with an additional 600lbs capacity per spring, making the total front suspension capacity 1200lbs heavier than stock. These springs also offer an average of 2" of lift above stock for the front of the truck. Standard versions are also...

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-875	Rear	1,300lbs	5

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1221	Rear	1425 lbs	2/1

OEM # 15033928 Upgrade your Chevy Silverado 1500 or GMC Sierra 1500's rear suspension with our top-of-the-line replacement leaf spring. Engineered specifically for 1999-2006 models, this standard duty leaf spring boasts three leaves for optimal strength and stability. Perfect for DIY auto enthusiasts, installation is a breeze with precise fitment and...

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.