Suspension and Axle Identification Guide
IDENTIFICATION GUIDE
PRIMARY SUSPENSIONS — VOCATIONAL APPLICATIONS (INTRAAX ® ) Hendrickson’s INTRAAX ® suspensions have an integrated axle and beam assembly. The illustrations show the distinguishing characteristics of the various models. In order to determine the suspension model, find the illustration with the same identifying characteristics.
INTRAAX Top-Mount • AAT 23K /25K /30K
5.75" long lower shock bolt
Hanger width is 7.25"
Manufactured before December 2010
LDA ™ Large-Diameter Axle (5.75")
Air Spring mounting located above the axle
With weld-on air spring pedestal
Integrated axle and beam assembly
INTRAAX Top-Mount • AANT 23K
Manufactured late August 2002 through 2008
5.75" long lower shock bolt
Hanger width 4.12"
With cast, bolt-on air spring pedestal
Air Spring mounting located above the axle
Manufactured 2001 through 2002
LDA ™ Large-Diameter Axle (5.75")
Integrated axle and beam assembly
With 2-inch, weld-on air spring pedestal
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Refer to Hendrickson Literature No. L977 - Suspension ID Guide
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