i might have some other 250x 300ex parts as well ..I have my 98 300ex a arms with good bushings and ball joints...a pair of front calapers and some 250x front spindels...you got any extra parts that are good ?
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and if i could get your old bottom end id sell you mine for less $$ I want to build another motor and ill need the cases from a 250x or 300ex ....I have another set of 300ex gears I could use to fix the broke ones in your bottom end and a buddy that can help me split the cases successfully..
..i also have a used but not trashed 250x crank shaft connecting rod and balance shaft

 

ok cool. If that bottom end is working and everything i could trade mine minus the side case cover you said yours needed.