ULTIMAAX ® – Kenworth Vehicles
REAR SUSPENSIONS
VEHICLE
VEHICLE
KEY NO. PART NO.
DESCRIPTION
QTY.
KEY NO. PART NO.
DESCRIPTION
QTY.
1
Equalizing Beam Assembly with Shock Bracket 2 Includes Key Nos. 3-5a
10
*Shear Spring
8
Progressive Load Spring Service Kit, One Side Includes Key Nos. 11-13
60961-751
78489-540 78489-560 60961-759
54" Beam Length 56" Beam Length
11
*Progressive Load Spring
4
Cross Tube Service Kit, Includes Key No. 2 and Weldable Loose Plug (Not Shown)
Progressive Load Spring Fasteners Service Kit, One Side, Includes Key Nos. 12-13
34013-196
2
44642-008 60961-755
Cross Tube - 1140 mm
1
12 13 14
*M10 x 1.5 x 40 mm 6g Flange Bolt
8 8 4
Equalizing Beam Bushings Service Kit, One Beam , Includes Key No. 3-4, 6-8, 18-20
*M10 x 1.5 Flange Lock Nut
70886-000 34013-197
Saddle Assembly
Saddle Only Fasteners Service Kit, One Side, Includes Key Nos. 15-16
3
69538-000L 60961-752
Center Bushing
2
End Bushing Service Kit, One Wheel End, Includes Key Nos. 4-8
15 16 17
*M20 x 1.5 x 75 mm Flange Bolt
8 8 4
4
*Bar Pin End Bushing Assembly, Includes Key No. 5a
*M20 x 1.5 Flange Nut
77205-001 60961-768
Saddle Cap, Replaces 77374-001
Saddle Cap Fasteners Service Kit, One Side, Includes Key Nos. 18-20
5
Bar Pin Shim
8
a b c
50130-000 50131-000 57026-000
0.19" / 0.19" Standard 0.25" / 0.12" Optional
18 19 20 21 22
*M16 x 2 x 6g x 180 mm Flange Bolt
8 8 8 4 2
0.375" Optional flat shim End Bushing Fasteners Service Kit, Includes Key Nos. 6-8
*M16 Flat Washer *M16 x 2 x 6h Nut Shock Absorber Upper Shock Bracket
60680-015L 78630-001
56659-001 56659-005 34013-104
Tandem
One Beam
Replaces 78630-002 (If equipped)
Upper Shock Fasteners Service Kit, One Beam, Includes Key Nos. 23-24
One Wheel End
60961-818
6 7 8 9
*1"-8 UNC x 6" Bolt *1" Hardened Washer *1"-8 UNC Locknut
8
16
23 24 25
*M16 x 2 x 140 mm Flange Bolt
4 4 2
8 2
*M16 x 2 Flange Nut
Frame Hanger, 34" Width, 11" Ride Height
8240-0000-XXX **Longitudinal TRAAX ROD ™ Assembly,
70912-204 70912-205 60961-749
7" Axle Hanger Drop 7¾" Axle Hanger Drop
Straddle/Straddle, Specify Length in mm Replaces 92000-XXXS
Shear and Progressive Load Spring Service Kit, One Side, Includes Key Nos. 10-13,15-16, 18-20, 30 Shear Spring Service Kit, One Side Includes Key Nos. 10, 15-16, 18-20, 30
26 8233-0099-XXX ***Transverse TRAAX ROD Assembly, 625 mm, 2 Straddle/Taper, Replaces 92350-605S Not Shown 49689-000L Torque Rod Shim As Req. 27 70867-001 P-80 Lubricant - 10 ml (Not Shown) As Req.
60961-750
NOTES: * Item included in kit / assembly only, part not sold separately. ** Longitudinal and transverse TRAAX ROD bushings are non-serviceable, the entire torque rod assembly requires replacement. Visit TRAAX ROD website www.traaxrods.com for more information. *** Transverse torque rods are mandatory for the ULTIMAAX rear suspension regardless of axle spacing. HENDRICKSON Lit. No. 48422-592 – ULTIMAAX Gauge Card can be used to measure in unloaded condition (1) the height of the progressive load spring (PLS) and (2) the length of cut / split of the shear spring and PLS. Gauge card can be obtained on-line at www.hendrickson-intl.com/Litform
539
Reference Lit. No. SP-301 | 1-866-755-5968
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