SUSPENSION PACKAGE I -inc: Strongly recommended for applications w/high center of gravity (ambulances, armored vehicle, shuttle bus, box body and refrigeration vehicle), Reinforced Rear Axle Stabilizer, Heavy Duty Front Springs & Shocks, Chassis For Application C
SUSPENSION PACKAGE II -inc: Recommended for RVs, Box Bodies w/tail lift and vehicles w/a high center of gravity, Chassis For Application D, Heavy Duty Front Springs & Shocks, Firmer Rear Springs
SUSPENSION PACKAGE IV -inc: Recommended for Refrigeration vehicles w/built-in shelving and auto transporter, Reinforced Rear Axle Stabilizer, Chassis For Application B
HEAVY DUTY FRONT AXLE PACKAGE -inc: Recommended for RVs, Armored Vehicles, Ambulances and Shuttles, Heavy Duty Front Springs & Shocks, Front Axle Reinforced
SUSPENSION PACKAGE I -inc: Strongly recommended for applications w/high center of gravity (ambulances, armored vehicle, shuttle bus, box body and refrigeration vehicle), Reinforced Rear Axle Stabilizer, Heavy Duty Front Springs & Shocks, Chassis For Application C
SUSPENSION PACKAGE II -inc: Recommended for RVs, Box Bodies w/tail lift and vehicles w/a high center of gravity, Chassis For Application D, Heavy Duty Front Springs & Shocks, Firmer Rear Springs
SUSPENSION PACKAGE IV -inc: Recommended for Refrigeration vehicles w/built-in shelving and auto transporter, Reinforced Rear Axle Stabilizer, Chassis For Application B
HEAVY DUTY FRONT AXLE PACKAGE -inc: Recommended for RVs, Armored Vehicles, Ambulances and Shuttles, Heavy Duty Front Springs & Shocks, Front Axle Reinforced