1999-2022 - 54 Inch Axle Spacing
Second Design:
The second design of TufTrac springs features a center stud and dimples, and was introduced in 1999 and continues to 2022.
Upgrade:
The second design includes an upgrade to 9/16" bolts that fasten the upper rubber bolster to the U-bolt plate. To ensure compatibility, early design 1/2" bolt holes may need to be drilled out to accommodate the new 9/16" bolts.
Compatibility:
Vehicles produced in 1999 may have either the first or second design springs.
Axle Spacing:
This suspension type is designed for 54" axle spacing.