Front inner bearing $11.59 https://www.amazon.com/Timken-LM104949-Bearing/dp/B000BZACMU
Front inner race $8.91 https://www.amazon.com/Timken-JLM104910-Wheel-Bearing/dp/B000RDEEUW
Front outer race and bearing $13.40 https://www.amazon.com/Timken-SET47-Bearing-Set/dp/B000BZAAWM/
$33.90 from...
Timken Bearings
Check out the prices at rockauto if doing this yourself. I think $50 should get outer and inner for the whole front axle, as i have a set on a shelf, since it turned out my bearings and races are fine and i just needed to tweak the preload.
You might spend more on the "drift"...
It may only need the preload adjusted. Possibly new hub nut and lock ring kit.
Koyo and Timkin bearings are both OE for this truck. Indeed, Koyo and Timkin consider each-other's bearings to be equivalent for this application, and you may open a Timkin box to find Koyo bearings or the other way...