Place the vehicle in neutral mode on a hoist platform with a rear axle supported by a suitable jack. Start with new lower shock absorber hardware installation while securing it at 80 Nm (59 lb-ft). The correct clamp load retention requires new U-bolts to be spaced at 93 mm (3.66 inches) ± 3 mm (0.12 inches) distance. The service starts by removing and discarding the four rear U-bolt nuts before taking out the U-bolts and spring plate. The tightening procedure for Torsion® axle U-bolt nuts requires four steps reaching 25 Nm (18 lb-ft), 50 Nm (37 lb-ft), 75 Nm (55 lb-ft), and 103 Nm (76 lb-ft) while using a cross pattern. Standard U-bolt nuts require four-stage tightening according to 30 Nm (22 lb-ft), 60 Nm (44 lb-ft) and 90 Nm (66 lb-ft), and concluding at 115 Nm (85 lb-ft). Carefully drop the rear axle with caution before removing the rear spring spacer when it exists on the vehicle. Establish a new spring-to-frame bracket bolt and flagnut before tightening it to 200 Nm (148 lb-ft). The spring shackle-to-spring bolt and nut must be taken out through discarding them before installation requires torqueing to 103 Nm (76 lb-ft). Install a new shackle by removing the spring shackle-to-frame bracket bolt and flagnut first then discarding them before installing a new shackle which requires tightening to 115 Nm (85 lb-ft). The installation process ends by reversing all steps of taking apart the suspension.