2013-2023

THUREN FABRICATION 2013-2023 Operating instructions

  • I have reviewed the document for the Thuren Fabrication Leaf Shackle TF-RSHAC-13U3500. This document provides guidance on removing old shackles, installing the new ones with two height settings, and proper lubrication procedures, specifying a torque of 140 ft/lbs. I'm ready to answer your questions about this product.
  • What is the torque specification for the Leaf spring and Shackle hardware?
    How many height adjustments does the Thuren shackle provide?
    How much grease should I use?
Thuren Fabrication
2013 - 2023 rear leaf shackle
These instructions are applicable to the following Trucks:
• 2013 - 2023 Ram 3500
Applicable Part Numbers:
• (TF-RSHAC-13U3500)
1. Removal
• When removing OEM/Previous Shackle, the hardware is under stress and will be difficult to remove.
• Jacking up your truck at the frame can help relieve this pressure.
• Once you find the sweet spot and the hardware turns easily, remove both shackles.
2. Installation
• Thuren shackles provide 2 height adjustments: Stock, 1/2” lowering, depending on the bolt
holes used, the closest one to the frame mount is 1/2” Lowering.
• Install all hardware in desired position for both Shackles.
• Torque both Leaf spring and Shackle hardware to 140 Ft/Lbs at ride height.
3. Lubrication
• It is mandatory to grease your Shackle Assembly after install.
• The Shackle Assembly will hold quite a bit of grease and you should pump high performance grease
into the assembly until you feel solid pressure. *This could be as many as 30 pumps depending on your
grease gun.
Stock
1/2”
Lowering
/