ULTIMAAX ® – Kenworth Vehicles
REAR SUSPENSIONS
VEHICLE
VEHICLE
KEY NO. PART NO.
DESCRIPTION
QTY.
KEY NO. PART NO.
DESCRIPTION
QTY.
Progressive Load Spring Service Kit, One Side, Includes Key Nos. 11-13 Progressive Load Spring Fasteners Service Kit, One Side, Includes Key Nos. 12-13 *Progressive Load Spring
1
Equalizing Beam Assembly with Shock Bracket 2 Includes Key Nos. 3-5a
60961-751
78489-540 78489-560 60961-759
54" Beam Length 56" Beam Length
11
4
34013-196
Cross Tube Service Kit, Includes Key No. 2 and Weldable Loose Plug (Not Shown)
12 13 14
*M10 x 1.5 x 40 mm 6G Flange Bolt
8 8 4
2
44642-008 60961-755
Cross Tube - 1140 mm
1
*M10 x 1.5 Flange Lock Nut
Equalizing Beam Bushings Service Kit, One Beam , Includes Key No. 3-4, 6-8, 18-20
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
*M20 x 1.5 Flange Nut
4
*Bar Pin End Bushing Assembly, Includes Key No. 5a
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
*M16 Flat Washer *M16 x 2 x 6H Nut Shock Absorber Upper Shock Bracket
0.375" Optional flat shim End Bushing Fasteners Service Kit, Includes Key Nos. 6-8
60680-015L 78630-001
Tandem
56659-001 56659-005 34013-104
Replaces 78630-002 (If equipped)
One Beam
Upper Shock Fasteners Service Kit, One Beam , Includes Key Nos. 23-24
60961-818
One Wheel End *1"-8 UNC x 6" Bolt *1" Hardened Washer *1"-8 UNC Locknut
6 7 8 9
8
23 24 25
*M16 x 2 x 140 mm Flange Bolt
4 4 2
16
*M16 x 2 Flange Nut
ULTRA ROD ® PLUS ™ Longitudinal Torque Rod, Straddle/Straddle Includes Key No. 27
8 2
Frame Hanger, 34" Width, 11" Ride Height
70912-204 70912-205 60961-749
7" Axle Hanger Drop 7¾" Axle Hanger Drop
92000-610S 92000-660S 92350-605S 66649-002L 66649-004L 49689-000L 70867-001
Front Rear
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
**ULTRA ROD PLUS Transverse Torque Rod Straddle /Taper Includes Key Nos. 27-28
2
27 28 29 30
XTRB Straddle Bushing XTRB Taper Bushing
6 2
60961-750
Torque Rod Shim
As Req. As Req.
10
*Shear Spring
8
P-80 Lubricant - 10 ml (Not Shown)
NOTES: * Item included in kit/assembly only, part not sold separately. ** Transverse torque rods are mandatory for the ULTIMAAX rear suspension regardless of axle spacing.
HENDRICKSON ULTIMAAX Gauge Card Literature No. 48422-592 can be obtained on-line at www.hendrickson-intl.com/Litform to measure in unloaded condition (1) the length of cut / split, (2) depth of separation and (3) the height of the progressive load spring (PLS).
445
Reference Lit. No. SP-301 | 1-866-755-5968
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