[eljay]

I am about to replace the rear trailing arm bushings and the service manual calls for Loctite 638 to be applied to the bushing. That is a max strength compound.
I've never seen this mentioned in any DIYs like this one.https://www.pelicanparts.com/BMW/tec...eplacement.htm

Has anyone applied Loctite 638 to their bushings upon install?

[335i54n]

it retaining compound to lock metal to metal parts together. it good practice to use it imo on any metal to metal fit install

[eljay]

Originally Posted by 335i54n

it retaining compound to lock metal to metal parts together. it good practice to use it imo on any metal to metal fit install

Thanks.
The strange part is that it is not necessary for the bushing and ball joint supporting the big rear arm holding the spring and shock.

[pizza_nightmare]

side question: are you doing just the bushings or the arms with bushings/bushes installed? My rubber in my rear suspension components are a mess and I need help refreshing them.

[eljay]

Originally Posted by pizza_nightmare

side question: are you doing just the bushings or the arms with bushings/bushes installed? My rubber in my rear suspension components are a mess and I need help refreshing them.

I'm replacing all bushings and arms.
While the bushings in the arms are replaceable, I don't think it's worth it and I would just replaçe the whole arm assembly.

[335i54n]

there's probably a reason they don't specifiy it, maybe it has more contact surface or the or how it's under load. considering the age of things it good to have on hand if a press-fit feels loose but there is cure time to deal with. there monoball upgrade option also

https://www.e90post.com/forums/showthread.php?t=1640804