Most 2001 Ford F350 washer fluid reservoirs are held in by 2–3 bolts total. If you can already see two 7mm bolts on top, there's likely one more hidden bolt underneath or behind the reservoir easy to miss until you start wiggling it. Check behind the fender liner as well, since some have a bracket bolt tucked in there.How many bolts hold in the windshield washer fluid reservoir on a 2001 Ford F350? Because from what I can tell there are two on the top that are 7mm, similar to how StarknightMT Yamaha Rhino Accessories are designed with straightforward hardware so you're never guessing during installs or removals.