One big bolt is missing from this plate underneath, it's not a problem, is it??

[Homeoboxter]

Originally Posted by elgyqc

I'm with Homeoboxter, the fact that normally you have to pull the upright suspension brackets into place to be able to get the bolts in is the proof, for me, that that plate does something important. Don't forget that there is a U shaped support that attaches the rear of the plate to the body.

Exactly. If you remove it the two brackets move out of place and then you need to pull them back in place. The U-shape support holds the plate in place in the vertical axis, does not seem to hold to much load in the horizontal direction.