Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
34-1341	Rear	2,470lbs	3/1PD

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
34-153	Rear	3,250lbs	6/1

This leaf springs fits the W Series 200-350 with 3/4" Spring Bolts. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
34-800	Front	1,900lbs	6

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1749HD	Rear	1,050lbs	1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1749	Rear	675lbs	1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-623HD	Rear	4,000lbs	10

*1978 - 1991 E-350 except passenger vans. This is a direct heavy duty upgrade for the OEM factory spring. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-623	Rear	3,235lbs	10

*1978 - 1991 E-350 except passenger vans. This is a direct replacement/upgrade for the OEM factory spring. 

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-485	Rear	2,400lbs	6/3

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

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-701HD	Rear	4,295lbs	6/1

This is a Heavy Duty upgrade for the stock springs. Its perfect for plowing and other heavy duty applications.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-695HD	Rear	3,100lbs	7

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

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-695	Rear	2,450lbs	5

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

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1855	Rear	2,700lbs	2/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-630	Front	2,250lbs	2

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1503	Rear	1,200lbs	3/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-711	Rear	1,850lbs	4/1

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

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-571	Rear	2,450lbs	4/1

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

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-567	Rear	1,650lbs	4/1

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

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-689	Rear	1,700lbs	4

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

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-516	Front	2,200lbs	2/PD

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-723	Rear	1,655lbs	3/1

This is a Standard Duty replacement for the stock three leaf spring.

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
43-1159	Rear	1,100lbs	3/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
34-768	Front	1,750lbs	3

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-442HD	Front	2,760lbs	8/1

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-905	Rear	2,200lbs	5

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-618	Front	3,500lbs	PD/2

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1209HD	Rear	4,600lbs	10

Part Number	Location on Vehicle	Spring Capacity	Number of Leaves
22-1209	Rear	3,710lbs	9

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
22-1419	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
22-1029	Rear	1,300lbs	4/1

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.