Problems Tightening Self-Locking Nut
When installing the self-locking nut on a ball joint with a tapered stud, it can be difficult to get the nut properly tightened. Featuring two stakes at the top, overcoming resistance in the tight space of the suspension assembly is a challenge. This can be an issue with MOOG® lower ball joints like the K8607T for the 1999-2019 Ford F-250/F-350 Super Duty and the K500141 for the 2005-2019 Ford F-450/F-550 Super Duty.
Old OE Nut (Left) vs. New MOOG Nut (Right)
To get the nut properly tightened, there are two different methods that can be employed – using a jack or using the old ball joint hardware.
Tightening Nut Using a Jack
Place jack under knuckle.
Jack knuckle up until taper engages with axle.
Tighten to the first toque specification in the reassembly procedure.
Lower jack and proceed with reassembly procedure to install components.
Tightening Nut Using Old Ball Joint Hardware
Install old nut.
Tighten to the first torque specification in the reassembly procedure.
Remove old nut.
Install new nut.
Tighten the new nut to the first torque specification in the reassembly procedure.
Continue with reassembly procedure to install components.
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