Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-937XL	Rear	1,000lbs	1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-433	Rear	1,050lbs	1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-901	Rear	2,850lbs	5/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-597	Rear	3,600lbs	7/1

*Only for models with U bolts down

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-419HD	Rear	4,100lbs	8/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-419	Rear	3,390lbs	7

*This spring was not originally offered and is an upgrade for the Colorado and Canyon.The centerbolt on the Colorado and Canyon is originally 5/16 and installing this spring will require modification to the centerbolt head or axle seat hole as it comes with a 3/8 centerbolt.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-442	Front	2,190lbs	8/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-943	Rear	3,760lbs	9 (8/1)

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1419HD	Rear	1,600lbs	4

*This spring originally came on the 4wd model, and while it is compatible with the 2wd model it will sit taller than stock.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1419	Rear	1,200lbs	4

*This spring originally came on the 4wd model, and while it is compatible with the 2wd model it will sit taller than stock.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-531	Rear	1,050lbs	1

This is a helper main leaf for the stock main leaf. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-400	Front	1,200lbs	2

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-485	Rear	2,775lbs	7

*The 22-485 is a lower arch spring than the 22-489.  For a higher arched spring you can view the 22-489 by clicking HERE*This spring was not originally offered and is an upgrade for the Colorado and Canyon.The centerbolt on the Colorado and Canyon is originally 5/16 and installing this spring...

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1017	Rear	1,400lbs	4

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1151	Rear	1,650lbs	5

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1143	Rear	1,350lbs	3/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-553	Rear	1,875lbs	6

*This spring was not originally offered and is an upgrade for the Colorado and Canyon. *The centerbolt on the Colorado and Canyon is originally 5/16 and installing this spring will require modification to the centerbolt head or axle seat hole as it comes with a 3/8 centerbolt.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1175	Rear	3,710lbs	3

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1169	Rear	2,485lbs	5

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-489	Rear	2,775lbs	7

*This spring was not originally offered and is an upgrade for the Colorado and Canyon. The centerbolt on the Colorado and Canyon is originally 5/16 and installing this spring will require modification to the centerbolt head or axle seat hole as it comes with a 3/8 centerbolt.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-315XX	Rear	3,375lbs	6

This leaf spring fits many heavy & medium duty semi / dump truck applications.  Such as GM, Chevy, Ford, and Sterling. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-315X	Rear	2,800lbs	5

This leaf spring fits many heavy & medium duty semi / dump truck applications.  Such as GM, Chevy, Ford, and Sterling. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-315	Rear	2,250lbs	4

This leaf spring fits many heavy & medium duty semi / dump truck applications.  Such as GM, Chevy, Ford, and Sterling.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-525	Rear	1,290lbs	4

*This spring was not originally offered and is an upgrade for the Colorado and Canyon.The centerbolt on the Colorado and Canyon is originally 5/16 and installing this spring will require modification to the centerbolt head or axle seat hole as it comes with a 3/8 centerbolt.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-499	Rear	3,390lbs	8

*This spring was not originally offered and is an upgrade for the Colorado and Canyon. The centerbolt on the Colorado and Canyon is originally 5/16 and installing this spring will require modification to the centerbolt head or axle seat hole as it comes with a 3/8 centerbolt.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-547HD	Rear	3,500lbs	8/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-603HD	Rear	4,500lbs	10/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-603	Rear	3,760lbs	10/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-617	Rear	3,995lbs	10

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-801	Rear	575lbs	1

This is a helper main leaf for the stock main leaf.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-843	Rear	10,500lbs	9 (5/4)

*The Topkick/Kodiak has three different style of suspensions. This spring is designed for the single eye/slipper w/hook end style suspension. This will not fit tapered double eye or radius arm suspensions.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-855	Rear	1,210lbs	3

This is a helper leaf for the stock main leaf.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-881HD	Rear	2,750lbs	4

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-881	Rear	2,250lbs	4

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-907	Rear	2,760lbs	6

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1813	Rear	3,000lbs	4

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1681HD	Rear	4,400lbs	5/1

This is a Heavy Duty replacement for the stock leaf spring.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1033HD	Rear	2,250lbs	4/1

This is a direct replacement/upgrade for the OEM factory spring.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-384	Front	1,100lbs	3

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-903	Rear	1,350	6

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-901	Rear	4,350lbs	8

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-731	Rear	800lbs	4

*For dual rear wheel only

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-721HD	Rear	4,500lbs	12

This is a heavy duty upgrade from stock and is only for the F-350 Dually

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1783HD	Rear	2,500lbs	4/1

This is an Extra Heavy Duty replacement for the stock three leaf or the four leaf version.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1747HD	Rear	5,500lbs	10

This is a Heavy Duty upgrade for the stock springs.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1747	Rear	5,500lbs	10

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1679-2	Rear	N/A	1

This is a Clip Leaf for the standard 43-1679 spring leaf.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1339HD	Rear	7,200lbs	10

This is a heavy duty upgrade for the OEM factory spring. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1339	Rear	5,100lbs	11

This is a direct replacement/upgrade for the OEM factory spring. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1337	Rear	10,350lbs	5/4

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1279	Rear	525lbs	1