Why...look at Ed's answer, and, the rear subframe is part of the rear suspension.
Front tiedowns I use now are the lower control arms since I have also covered the stock points. I do not like the control arms as I perfer not to have the suspension work on the road. I plan to weld a couple of plates to the underside, probably where the later model ones are.
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Chuck Baader
#36 ITA E30 BMW
Alabama Region Divisional Registrar