Grabbed out of a junkyard since the right rear of mine has a dent. It has some sort of patina in various spots. Sorry for the goofy photo but it is not easy to take a picture of chrome without background showing up.
I have tried 0000 steel wool and brasso, turtle chrome polish and mothers chrome polish. None seemed to have done anything
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil) My Backyard Frame Swap
Mothers mag/aluminum polish works pretty well.
If not turtle wax sells a chrome/fender polish.
I cleaned this motorcycle fender with steel wool/brake cleaner/penetrating oil to keep from rusting more.
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2000 Limited 4wd Millenium Silver Metallic, E rear locker, KYB Monomax All around, '99 tall coils up front with daystar 1" spacer, OME 890's in back, Weathertech Floor and cargo Mats, Track decal shackle Brackets, Satoshi grill mod (wahoo), Diff breather mod, 200k+ and still going strong!