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Comments
Comments
Helper Spring Comments
A1
A2
A3
A4
A5
A6
A7
H1
H2
H3
H4
H5
H6
H7
H8
H9
H11
H12
H13
H14
H15
H18
TBA
8" Clearance required between tire and frame.
6" Clearance required between tire and frame.
Universal weld on kit. Use P/N 57201 for vehicles with 8"-10" spacing between axle and frame. Use P/N 57220 for vehicles with 6
½"-8" spacing between axle and frame.
Without OEM Quad Shocks.
Must remove front anti-sway bar.
Some models must alter skit plate.
59103 requires 6" clearance between tire and frame. 59012 requires 8 ½" clearance between bottom of frame rail and top of leaf
spring, if less use P/N 59104.
Cannot be shipped UPS.
Only fits vehicles without OEM rear helper.
Heavy duty available.
Use 510-135 to replace OEM single leaf helper.
With 454 engine use 502-340 U-bolt kit.
For trucks that require longer U-bolts, use the optional 534-169 End Link Kit.
502-344 U-bolts included in master kit. Depending on which OEM spacer block is used, other lengths may be required. Consult
heavy duty U-bolt chart on page 55.
The gross axle weight rating (GAWR) for the front axle is listed on the vehicle certification label on the left door near the door
latch.
Replaces OEM single leaf helper.
With OEM sway bar use 502-298 U-bolt kit.
Relocation of tail pipe may be required.
Will raise vehicle approximately 1".
Installation kit contains 3 clamp-on and 1 bolt-on adjustable brackets.
Installation kit contains 2 clamp-on and 2 bolt-on adjustable brackets.
With diesel or 454 engine use 502-256 U-bolt kit.
To be announced.
Table Remarks Key Chart