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Discussion Starter · #1 ·
I got new rear subframe bushings to my 500SEL. The problem is the movement of the subframe during the process and therefore I cant get the main bolt to the threads.

The car is on the jack´s and there are limited space under the car. Do i have to just force the subframe back or is there something else I should do?

Thanks for the tips!
 

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1981 300SD W126
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337 Posts
It may very well be that the jacks are not keeping the body aligned properly therefore you can't get it to line up. Have you tried repositioning the jacks or stands, also how level is the ground you have them on.
 

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1977 450 SEL 6.9
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1,062 Posts
You can try and manipulate the subframe by using a smaller floor jack to bring it closer. Just go slowly and carefully until you have it close enough to have the bolt "bite". Of course you need to watch for cross threading as well.
 

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Discussion Starter · #6 ·
It seems that everything I do doesnt help the subframe to move.

This is the situation. I´ve changed the jack stand positions without any luck.

Maybe I have to compress the spring....ton of work. I wish there was another way,
Line art Cylinder Diagram
Line art Cylinder Diagram
 

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1977 450 SEL 6.9
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1,062 Posts
Maybe try and unload the rear suspension completely by jacking up the rear with a floor jack via the differential housing, Thus have the front suspended by the jack stands evenly, then by jacking up/lowering the rear you should be able to bring the subframe close and have the bolt aligned. It looks like you have some "twisting" going on in the chassis perhaps.
 

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1986 Euro 560SEC ECE Code 822
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1,959 Posts
I would lift the body then align the subframe. Perhaps have helper shove and manipulate a screwdriver in the mounting hole to align the hole so you can insert the bolt on the opposite side first.
 
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