Hey why not tack weld that allen in the bolt head to get it out.. er or pound it in there with some jb-weld gunked on it, to sit over night and have at it the next mornin...

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Thank you for all the help guys!

"Old Gretchen" <--1983 300SD w126 cali. emissions (so it says on wdw sticker)
LIght metallic blue with dark blue interior. Odo stuck at 160,500 mi.

www.handydo.joolo.com