This is older info so not sure if all is the same on newer E450's or not, but looking up a 2016 Ford chassis manual (for E450) had no info on lubing front end at all surprisingly (unless I missed it). Refer to post #3 for your four grease fittings. If they are different now, I am sure you, or someone else with that newer chassis will advise the Forum.
https://www.irv2.com/forums/f87/08-e...ts-410486.html
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