diff --git a/3d/truck_town/vehicles/tow_truck.tscn b/3d/truck_town/vehicles/tow_truck.tscn
index b5a90eee..23363a92 100644
--- a/3d/truck_town/vehicles/tow_truck.tscn
+++ b/3d/truck_town/vehicles/tow_truck.tscn
@@ -296,19 +296,16 @@ node_b = NodePath("../ChainB2")
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.644947, -1.85661)
 node_a = NodePath("../ChainB2")
 node_b = NodePath("../ChainB3")
-params/bias = 0.5
 
 [node name="PinJoint4" type="PinJoint3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.350687, -2.04279)
 node_a = NodePath("../ChainB3")
 node_b = NodePath("../ChainB4")
-params/bias = 0.5
 
 [node name="PinJoint5" type="PinJoint3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.217609, -2.33375)
 node_a = NodePath("../ChainB4")
 node_b = NodePath("../ChainB5")
-params/bias = 0.5
 
 [node name="Body2" type="VehicleBody3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.00169557, 0.222867, -3.97518)