1987 - 2007 Peterbilt Conventional 357-379 Front Leaf Spring - 6 Leaves - 75-170

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Peterbilt truck front leaf spring part number 75-170.

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 6 (PD/5/1)
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 25-13/16"
  • B - Leaf Spring Length: 25-13/16"
  • C - Leaf Spring Arch: 4-3/8"
  • D - Leaf Spring Pack Thickness: 4-1/8"
  • Leaf Spring Capacity: 9,200 lbs.
  • Leaf Spring OEM Number: 02-01728
  • Leaf Spring Eye Bushings: Front RNK / Rear RNK
  • Leaf Spring Material: Pad 1/.360, 5/.499 Full Taper, Second 1/1.210
  • Location - Front


Leaf spring 75-170 is the front leaf spring on 1987 - 2007 Peterbilt 357, 375, 376, 377, 377 A/E, 378 and 379. This spring is 4" wide, is a 6 leaf spring with a a pad and the capacity is 9,200 lbs. The OEM part number is 02-01728.


Models And Year Ranges:

Fits: 1987-2000 Front Peterbilt 375 And 376

Fits: 1987-2007 Front Peterbilt 357, 377, 377 A/E, 378 And 379 (With Set Forward Axle)

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