1988 - 2021 Navistar International 9700, 9800, 9100-9400, Lonestar, Prostar, 8200 and 8300 Front Leaf Spring - 2 Leaves - 55-144

*Diagram Spring May Differ From Actual Spring* Number of Leaves - 2 (PD/2/2PD) Leaf Spring Width - 4" A - Leaf Spring Length: 29" B - Leaf Spring Length: 29" C - Leaf Spring Arch: 4-1/2" D - Leaf Spring Pack Thickness: 2-7/8" Leaf Spring Capacity: 5,350 lbs. Leaf Spring OEM Number: 1664618C91 Leaf Spring Eye Threaded Bushings: Front TB-26 / Rear TB-26 Leaf Spring Material: Pad 1/.323, 2/.815, Pad 2/.401 Full Taper Location - Front Second Design Verify the OEM part number and measurements to confirm compatibility before purchasing. Need help? Visit: How to Identify a Leaf Spring.   Leaf spring 55-144 is the front leaf spring for Navistar International 9700, 9800, 9300, 9100, 9100i, 9200, 9200i, 9400, 9400i, Lonestar, Prostar, 8200 and 8300. The spring is 4" wide, is a 2 leaf full taper spring with 3 pads, has threaded bushings and has a capacity of 5,350 lbs. The OEM part number is 1664618C91. Models And Year Ranges: Fits: 1988-1999 Front Navistar International 9700 Fits: 1996-1999 Front Navistar International 9800 (With Set Back Axle) Fits: 1988-1999 Front Navistar International 9300 (With Set Back Axle) Fits: 1989-2011 Front Navistar International 9100, 9100i, 9200, 9200i, 9400 and 9400i Fits: 2007-2016 Front Navistar International Prostar Fits: 2008-2021 Front Navistar International Lonestar Fits: 1988-2000 Front Navistar International 1988-2000