Fitting Paralift with a new axle, Hendrickson says it retained the durability and versatility of the 20,000-lb, steerable lift axle while improving driveline clearance and wheel cut. The new PST comes with a Westport axle and D22 spindle resulting in a 90-lb weight reduction. Models are available for a wide variety of class 8 trucks.
To enhance driveline clearance and extend wheel cut to 25 degrees, the axle seats are re-designed and the stabilizers moved inside the tie rod and connected to the axle brackets.
PST is said to retain the advantages of previous models including adjustability of frame width and ride height, allowing truck operators, aftermarket installers and body builders to apply one unit to meet a wide variety of truck configurations.
The parallelogram design maintains proper wheel tracking and ensures lift plates remain parallel for longer air spring life. The lift axle’s trailing-arm beams feature a single-paddle, z-beam configuration.
The Paralift PST delivers 12 in. of total travel with 9 in. of lift in ride heights from 9.5 to13.5 in., all in a 28-in. package space. Zero-torsion trailing-arm bushings help eliminate bushing wind-up and allow for the two lift-spring configuration.
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