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      07-30-2019, 04:30 PM   #92
VictorH
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Drives: '09 M3
Join Date: Dec 2007
Location: SC

iTrader: (4)

Since I'm friendly now with my local machine shop, I had them make up some spacer sleeves to put into the bushing between the M12 bolts and the bushing to eliminate some of the slop.
As has been pointed out, this is probably not necessary, but I wanted to try and ensure I had my subframe as centered over the bolt holes as possible. If you wanted to replicate the specs are
OD- 5/8"
Front bushing length 1 3/4"
Back Bushing length 2 3/4"
They fit loose and length is just right not interfere with either end of the bushing or mounting surface.

Subframe back-in. Should go fast to finish up but have a few competing time interests.
The amount of movement, of the subframe, with the bushings in place is probably on the order of a 1/16" or so, it's really quite minimal.
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