Synergy Mfg · New
Synergy Jeep TJ/TJL/YJ/XJ/ZJ HD Knurled Front Ball Joint Set Dana 30/44
MPN 4120-04 · Store SKU syn4120-04
Supplier stock checked 11/7/2026, 3:53:26 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Synergy Jeep TJ/TJL/YJ/XJ/ZJ HD Knurled Front Ball Joint Set Dana 30/44
Manufacturer fitment & guides
Check 4120-04 against the manufacturer’s application information below.