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OPERATION AND SERVICE INFORMATION
Page 28
Owner’s Manual and Service Guide
Read all of manual to become thoroughly familiar with this vehicle. Pay particular attention to all Notes, Cautions and Warnings
HARDWARE
Periodically, vehicle should be inspected for loose fasten-
ers. Fasteners should be tightened in accordance with
the Torque Specifications table (Ref. Fig. 41 on page 28).
Use care when tightening fasteners and refer to Techni-
cian’s Repair and Service Manual for specific torque val-
ues.
Generally, three grades of hardware are used in vehicle.
Grade 5 hardware can be identified by three marks on
the hexagonal bolt head and grade 8 by six marks.
Unmarked hardware is Grade 2.
Fig. 41 Torque Specifications and Bolt Grades
ALL TORQUE FIGURES ARE IN FT. LBS. (Nm)
BOLT SIZE
Grade 2
1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 3/4" 7/8" 1"
Unless otherwise noted in text, tighten all hardware in accordance with this chart.
This chart specifies 'lubricated' torque figures. Fasteners that are plated or lubricated when
installed are considered 'wet' and require approximately 80% of the torque required for 'dry' fasteners.
4
(5)
8
(11)
15
(20)
24
(33)
35
(47)
55
(75)
75
(102)
130
(176)
125
(169)
190
(258)
Grade 5
Grade 8
6
(8)
13
(18)
23
(31)
35
(47)
55
(75)
80
(108)
110
(149)
200
(271)
320
(434)
480
(651)
6
(8)
18
(24)
35
(47)
55
(75)
80
(108)
110
(149)
170
(230)
280
(380)
460
(624)
680
(922)
BOLT SIZE
Class 5.8
(Grade 2)
M4 M5 M6 M8 M10 M12 M14
1
(2)
2
(3)
4
(6)
10
(14)
20
(27)
35
(47)
55
(76.4)
Class 8.8
(Grade 5)
2
(3)
4
(6)
7
(10)
18
(24)
35
(47)
61
(83)
97
(131)
Class 10.9
(Grade 8)
3
(4)
6
(8)
10
(14)
25
(34)
49
(66)
86
(117)
136
(184)
5.8
8.8
10.9
Ref Tsp 1