Sorry if this sounds like a total noob question but im not much of a mechanic and i've searched for days and cant figure this out.
im putting the rear suspension back together on an 89 240sx i got that was pretty well ripped apart. all the suspension pieces were sitting inside the car. control arms struts everything. i pretty well have just about everything back together except a few little things.
im trying to figure out where these weird bolts go and i've been trying for days with no luck.
sorry if this seems a little noobish.
thanks in advance.

those look like 2 of 4 of the bolts that hold the subframe to the chassis