1991 d50 fuel tank????

sorry if this is in the wrong spot,,,,I can not seem to find a fuel tank for my 1991 d 50,for some reason there does not seem to be new or aftermarket tanks for these years.

can a different year tank be modified to fit?/
any suggestions
thanks for your help

You will have to find one in a junkyard or second hand. 90+ will work

Good Luck Man Ive Been Lookin For One For Years The Problem Is That There Is No Aftermarket That I Can Find And The Only Ones I Do Come Across Are For The Carbureted Models And All The Junk Yards Ive Went To Or Called Smash The Fuel Tanks Right Away I Eventually Got That Patch Junk To Work On Mine And Its Been Holding But Im Paranoid About It If U Find A Good Source For Some Let Me Know

Car-part.com a bunch of used OEM tanks for 90+ as I just looked. $100 and down