Fastener torque specifications – Spicer Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock User Manual
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Parts Identification
Fastener Torque Specifications
Forward Carrier
Note: Fasteners using self-locking thread “patches” may be reused if not damaged, but should be secured by a few drops of
Loctite #277 on threaded surface. Reused fasteners should be wiped clean of excess oil, special cleaning not required.
* Torque nut to 840 lb-ft. (1140 N•m), then continue tightening to align nut slot with nearest hole in pinion shank.
Correct torque values are extremely important to assure long Dana life and dependable performance. Under-tightening of parts
is just as harmful as over-tightening.
Exact compliance with recommended torque values will assure the best results.
The data includes class and torque tightening values.
Power Divider
Class
Size
Tool
lbs. ft.
N•m
Diff. lock cover to carrier
8.8
M10 X 1.5
13 mm
28-35
38-47
Diff. lock switch
8.8
M12 X 1.5
10-12 14-16
IAD lock cover cap screw
8.8
M10 X 1.5
13 mm
28-35
38-47
Input bearing cage cap screw
10.9
M14 X 2
21 mm
114-140
155-190
Input shaft nut
M42 X 1.5
55 mm
840-1020
1140-1383
Power divider cover cap screw
10.9
M14 X 2
21 mm
114-140
155-190
Diff and Gearing
Front pinion helical nut
Grade 8
M42 X 1.5
65 mm
840-1020*
1140-1383*
Output shaft nut
M39 X 1.5
55 mm
680-832
920-1130
Rear pinion nut
8.8
M36 X 1.5
55 mm
575-703
780-953
Ring gear nut with bolt 126219
12
M16 X 1.5
24 mm
215-255
292-346
Wheel diff. case cap screw
10.9
M14 X 2
16 mm12 pt
114-140
155-190
Carrier
Carrier to housing cap screw
12.9
M16 X 2
24 mm
230-270
312-366
Carrier to housing nut
12 M
16 X 1.5
24 mm
199-244
270-331
Differential bearing cap screw
12.9
M20 X 2.5
30 mm
350-428
475-580
Thrust bolt jam nut
4
M24 X 2
36 mm
148-181
201-245
Housing
Axle cover cap screw
12.9
M12 X 1.75
18 mm
85-103
115-140
.500-20 11/16 55-71 75-96
Axle shaft to wheel hub nuts
.625-18 15/16 170-190 230-258
.750-16
1 1/8
285-345
386-468
Breather fitting - u-tube design
.375-18
.750 Hex
20-26
27-35
Magnetic plug (fill)
NPSF
1 X 11.5
13/16
40-60
54-81
Oil drain plug
NPTF
.750-14
1/2 Drive
40-60
54-81
Temperature sender/plug
40-60 54-81