He doesn't have a spindle to exchange.I found this…
Ford Raptor Gusseted and Reinforced Spindle Exchange Program - Pair - TSW Offroad
Ford Raptor Upgraded Gusseted Spindles / Knuckles Exchange programtswoffroad.com
Rockauto has Motorcraft spinsldes MEF116 is FR and MEF118 is FL. $386 and $409
2010 FORD F-150 6.2L V8 Knuckle | Shop Now at RockAuto
Steering Parts and More for Your 2010 FORD F-150 at Reliably Low Prices. Fast Online Catalog. DIY-Easy. Your Choice of Quality. Full Manufacturer Warranty.
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Did you not bother to check Rockauto before your posting spree?