ULTIMAAX ® – Peterbilt Vehicles
REAR SUSPENSIONS
VEHICLE
VEHICLE
KEY NO. PART NO.
DESCRIPTION
QTY.
KEY NO. PART NO.
DESCRIPTION
QTY.
1
Equalizing Beam Assembly, Includes Key
2
9
*M10 x 1.5 x 35 mm 6g Flange Bolt
8 8 4
Nos. 3-4
10 11
*M10 x 1.5 Flange Locknut
78634-560 78634-600 80192-560 80192-600
60K, 56" Beam Length 60K, 60" Beam Length 70K, 56" Beam Length
80964-001M Saddle Assembly, Replaces 80964-001
Saddle Only Fasteners Service Kit, One Side, Includes Key Nos. 12-13
34013-197
70K, 60" Beam Length Cross Tube Service Kit, Includes Weldable Loose End Plug (Not Shown)
12 13 14
*M20 x 1.5 x 75 mm Flange Bolt
8 8 4
*M20 x 1.5 Flange Nut
80965-001 60961-879
Saddle Cap
Saddle Cap Fasteners Service Kit, One Side, Includes Key Nos. 15-16
60961-759 60961-875
60K, Includes Key No. 2a
70K, Includes Key No. 2b & Circlip (Not Shown)
2
Cross Tube, 1140 mm
1
15 16 17 18
*M20 x 1.5 x 175 mm Flange Bolt
8 8 4 4
a b
44642-008 78962-001
60K
*M20 x 1.5 Flange Locknut
70K Equalizing Beam Bushings Service Kit, One Beam, 6" Bushing 60K, Includes Key No. 3a, 4-5, 15-16 70K, ncludes Key No. 3b, 4-5, 15-16 Center Bushing Assembly, Includes End Plug
60680-016L 78630-001 60961-818
Shock Absorber
Upper Shock Bracket
Upper Shock Fasteners Service Kit, One Beam, Includes Key Nos. 19-20
34013-290 34013-291
19 20 21
*M16 x 2 x 140 mm Flange Bolt
4 4 2
3
2
*M16 x 2 Flange Nut
a b
69538-000L 78676-001 34013-052
60K
8232-0000-XXX **Longitudinal Severe-duty TRAAX ROD ™
70K, Includes Circlip, Replaces 80539-001 End Bushing and Adapter Service Kits, One Wheel End, 60K-70K, Includes Key No. 4-5 End Bushing, 60K-70K, 6" Bushing End Bushing Adapter Assembly, 60K-70K Frame Hanger, , see Selection Guide below Shear and Progressive Load Spring Service Kit, One Side, Includes Key Nos. 7-10, 12-13, 15-16, 30
Assembly, Straddle/Straddle, Specify Length in mm, Replaces V-rod Assembly
22 8236-0099-XXX ***Transverse Severe-duty TRAAX ROD Assembly, 2 Straddle/Taper, Specify Length in mm Replaces V-rod Assembly Not Shown 49689-000L Torque Rod Shim As Req. 23 ****V-rod Assembly 2 24 ****Corner Bracket 4 25 ****M20 x 2.5 x 65 mm Flange Bolt 10 26 ****Axle Apex Bracket Front 2° 1 Rear 9° 1 27 60613-000 Rebound Support Angle 4 28 60818-002 ½" x 2¼" Flange Bolt 8 29 60819-000 ½" Flange Nut 8 30 70867-001 P-80 Lubricant - 10 ml (Not Shown) As Req.
4 5 6
10363-000L 21140-007
4 4 2
60961-876
Shear Spring Service Kit, One Side Includes Key Nos. 7, 12-13, 15-16, 30
60961-877
7
*Shear Spring
8
Progressive Load Spring Service Kit, One Side Includes Key Nos. 8-10
60961-822
8
*Progressive Load Spring (PLS)
4
Progressive Load Spring Fasteners Service Kit, One Side, Includes Key Nos. 9-10
60961-812
NOTES: Quantities specified are for the vehicle. Quantities of service kit components may vary from amount shown in the list. * 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. **** V-rod assembly and parts are no longer available for production after February 2021, contact Hendrickson Truck Parts for options. HENDRICKSON Lit. No. 48422-598 – ULTIMAAX Gauge Card can be used to measure in unloaded condition (1) the height of the progressive load spring ((PLS 78897-001)) and (2) the length of cut / split of the shear spring and PLS. Gauge card can be obtained online at www.hendrickson-intl.com/Litform
■ Frame Hanger Selection Guide
60K lb. • 70K lb. Capacity
Key No. 6
♦ Ride Height
♦♦ Saddle Height
♦ Axle Drop
Frame Hanger Part Number
Figure 1
Capacity (lb.)
Frame Width
34"
80821-004 80821-104 80821-009 80821-107
60K
13"
20.25"
7.75"
34.75"
Bottom of Frame
34"
70K
13"
21.25"
8.66"
34.75"
Saddle Height
CL
of Center Bushing
♦ For reference only ♦♦ See Figure 1 for Saddle Height
455
Reference Lit. No. SP- 308 | 1-866-755-5968
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