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Only the bushings in the shackle
1 3/8" bushing outside diameter Be in control when maneuvering through turns, during a standing start acceleration, braking, over bumps and berms. Polyurethane allows the leaf spring system to function more effectively. For high performance applications the combination of heavy duty leaf springs and Energy polyurethane spring bushings deliver maximum benefit. You will feel the difference in positive handling and control.
Durometer (the measure of softness) and tensile strength are some of the terms automotive engineers use to describe properties of elastomeric suspension components.
Automotive applications should vary in durometer between 65(soft) and 88(firm).
Performance, heavy duty and off road tensile strength should not be less than 2000-2500 psi.
With most polyurethane companies it ends up being the lower durometer, the lower the tensile strength.
But with Energy custom compounds and in-house proprietary formulations, their engineers can now custom tailor the urethane properties in Energy polyurethane products to provide the proper mix of strength and durometer as required by application.
RIDES BETTER, LASTS LONGER!
The suspension components abused by heavy off-road use, require good control.
In these off road applications, Energy engineers specify a durometer of 80-85 to ensure good control.
Tensile strengths are achieved on the order of 5000 psi! to assure durability and long component life Other recommended parts:
Spring hardware kit
U-Bolts
Shackles
This Product Fits The Following
1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996 Ford Bronco
1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, Ford Truck F150, F250, F350
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