Check the listing for details. 4045 GM Torsion Bar Tool - Large. Condition: New. Listed at 78.61 USD. Holds torsion bar while making adjustmentsServices 2011 & up HD & C/K trucks (GM Trucks)Forged constructionBright blue body INSTRUCTIONS: REMOVAL:1. Attach Torsion Bar Unloader to frame rail of vehicle2. Tighten tool against the torsion bar adjusting arm3. Loosen or fully remove the adjusting bolt connected to the adjusting arm4. Count the number of turns in order to identify the original position of adjusting bolt5. When complete, remove tool and perform required service INSTALLATION:1. Attach Torsion Bar Unloader to frame rail of vehicle2. Tighten tool against the torsion bar adjusting arm3. Tighten tool, drawing torsion bar adjusting arm into the frame rail4. Tighten torsion bar adjusting bolt using the number of turns recorded in removal (Removal Step 2).5. Remove tool6. Check vehicle service manual for correct trim height and alignment specs