stock sub help

[pos2nat]

Thank you guys for all the input. I will try to replace the sub this week. I understand the three bolts for the sub enclosure, but why did Ford see the need for an addtional bolt on the back of the sub? The other 8 bolts holding the subwoofer to the encloure are good enough.

 

[pos2nat]

Thanks all. Sub has been repalced with a cheapie 8" sub from Walmart. Souns much better than before. but now I'm considering installing a larger amp and either a 10" or 12" sub. The stock amp is a "weener".