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Standard Duty Helper Springs
Standard Duty Helper Springs
Typical 1500 Series
Typical 2500/9500 Series
Standard Duty Helper Kits
are designed to add up to 2200 lbs.* of
additional capacity to Import and Domestic pickups, vans and
motorhomes. All standard duty helper kits are designed for the
do-it-yourself market. These helper kits can be installed with common
hand tools in less than one hour. No welding or drilling is required.
Variable Rate Design
This design has virtually no effect on the original suspension’s
performance until additional loads are applied. When weight is
added, secondary leaves engage to enhance suspension
performance and support loads up to 2200 lbs.*
Constant Rate Design
Continuously enhanced suspension performance and support for
loads up to 2200 lbs.* This style helper kit is designed for vehicles
that are subjected to more constant loads such as pickups with
service bodies and motorhomes.
Easily installed with hand tools.
Do-it-yourself installation.
Improves cornering stability.
Applications for most Import and Domestic trucks,
vans, motorhomes and utility vehicles.
Manufactured by Dayton Parts in the USA using the
highest quality American made materials and
components.
*
Never exceed the manufacturer’s suggested GVW.
If the Standard Duty Kit is not available for your application, refer to the "Heavy Duty" or "Air Lift" sections of this catalog.
See Page 2 for "Remarks Key Chart".
N/R - Not Recommended
N/A - Not Available
Chevrolet / GMC
2-Wheel Drive Truck
Model
Year
Spring
Wid.
Variable
Rate Kit
Constant
Rate Kit
Remarks
Blazer (full size), Jimmy, Tahoe, Yukon and Suburban; All 1973-00 2
¹⁄₂
505-2510 N/A
Some models changed to rear coil springs in 2000.
Suburban and Yukon XL 2500
2000-07 2
¹⁄₂
505-2510 N/A
With multi-leaf springs only.
C10/1500, C20/2500, R10/1500, R20/2500
1973-87 2
¹⁄₂
505-2510 505-9510
—
C10/1500, C20/2500 w/coil springs
1963-72 —
N/A
N/A
—
C10/1500, C20/2500 w/leaf springs
1963-72 2
¹⁄₂
505-2505 505-9505
—
C1500
1988-99 2
¹⁄₂
505-2510 505-9510
—
C2500
1988-00 2
¹⁄₂
505-2515 505-9515
—
C3500
1988-00 2
¹⁄₂
505-2515 505-9515
H6, Trucks with OEM single leaf helper see Heavy Duty
section of this online catalog.
C30/3500, R30/3500 (“V” body only); All
1973-91 2
¹⁄₂
505-2505 505-9505
Trucks with OEM single leaf helper see Heavy Duty
section of this online catalog.
S10/15 Blazer, Jimmy
1986-93 2
¹⁄₂
500-1515 N/A
—
S10/15 Pickup, Colorado, Canyon
1982-10 2
¹⁄₂
500-1535 N/A
—
Silverado 1500, 2500
1999-13 2
¹⁄₂
505-2515 505-9515
H6, Trucks with OEM helper see Heavy Duty section of
this online catalog.
Silverado 1500
2014-15 2
¹⁄₂
N/A
N/A
—
Silverado 1500HD, 2500HD and 3500
2002-13 2
¹⁄₂
505-2567 N/A
For applications with spring clip or second stage
interference.
Silverado 2500HD and 3500
2011-15 3
505-25673 N/A
Without OE Helper.
Variable Rate Design
Constant Rate Design