The reason for replacement is due to an unfortunate incident with a large immovable boulder . My attempts to weld it up have resulted in a nice little trail of spots on the ground following me around. looks like she'll be getting a freshening in the process. What else should I do while the motor is out? I'm figuring I'll do a compression test to see if it needs to come apart for internal work. If everything looks good is it worth it to put a 260k mile engine back in?

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85 300sd W126.120 26x,xxx , black w/grey inside , performance mods to come ........
83 300d w123.133 16x,xxx, yellow/tan,