Ran into a problem with the rear transmission L bracket, the bottom Lbracket bolt does not fully go in, in hangs out a little to point where u cant see the treads but it still sticks out it doesnt fully sit flush, im using a b16 bolt, but i pulled up the specs of the b18 bolt and they are both 14x75 bolts. so i dunno if maybe the thread pitch is off alittle from each bolt or wut, but i would assume if the b16 bolt went in for the most part that owuldnt be the case. so im alittle confused. the mount and the trans is lined up fine so theirs no problems with anything being off, just the bolt wont fully go in, and its a brand new bolt also. so again just wondering if anyone ran into this problem or has a idea on how to fix it.

and this is for a ls motor and ls trans