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what is used to edge the fender and door back into a flush position?


There isn't outward movement for the door, only side-to-side, and up-down. You can get outward movement of the fender by loosening the bolts along the hood side, pul fender outward, and tighten bolts. Then do the same on the bottom bolts under the cab. You don't get a lot of movement, but it should be enough, when using oem replacement parts. Getting aftermarket fenders to fit right may take an autobody person, my experienc(very little) is just from removing and reinstalling oem fenders, on both 2nd and 3rd gen rigs.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed