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Categories

Recommended U-Bolt Torque
For Cold-Formed U-Bolts 


                                      Leaf Spring U-Bolts Are Available In Grade 5 and Grade 8, All Bends.  New U-Bolts Are The Foundation Of Your Leaf Spring Install 

Leaf Spring U-Bolt Kits
                                                                                                                              
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Leaf Spring Upper Saddle & U-Bolt Kits Also Available
 
Chevy/GMC Upper Saddle & U-Bolt Kits

Ford Upper Saddle & U-Bolt Kits


  • For Cold-Formed U-Bolts which have been torqued to a set preload are recommended to be re-torqued after a short time to take up the stretch in the set of the material.
  • U-Bolts that have been well lubricated with an anti-seize compound will have a torque range between plated and unplated values. All the above values are general guidelines.
  • The OEM Service Manual on specific models always takes precedence over values shown.
  • U-Bolts Must Be Tightened and Torqued Using A Cross Pattern Sequence

Snug U-Bolts in the seqence shown.
Tighten completely in the sequence shown.
Check U-Bolts for tightness after 100 miles

SIZE
MATERIAL GRADE
MAX. TORQUE
FT. LBS.
PLATED
MAX TORQUE
FT. LBS.
UNPLATED
3/8-24
5
21
26
7/16-20
5
33
44
1/2-20
5
52
70
1/2-20
8
64
87
9/16-18
5
75
100
9/16-18
8
93
124
5/8-18
5
107
143
5/8-18
8
132
177
3/4-16
5
190
253
3/4-16
8
234
313
7/8-14
5
304
405
7/8-14
8
375
500
1-14
8
758
1,010
1-1/8-12
8
848
1,131
1-1/4-12
8
1,163
1,551
ATS Springs | 1069 S. County Line Road Souderton, PA 18964
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