Call Peavey. If the part is broke, they will sell you a new one or some replacement screws at a reasonable price. If it just needs to be reassembled because the nut on the back or the screws came loose, they can tell you how to put it back together. Getting it back together will likely involve pulling the speaker so you can get to both sides of the jack plate unless its just screwed in from the front.
If the wood is damaged, some titebond from your local woodworking store will become your best friend. I haven't had a reason to tear into the jack on any of my Peavey cabs so I can't say exactly what it would take to get your cab back together. Peavey techs can give you the best advice. I have found the very helpful. Peavey also has community forums with experienced folks online as well.
Clubs: BTB 118, Ibanez 689, 5-string 436, P&W 820, Lefties who play Rightie 157
BTB675, EDB605, GSR200, Ibanez Promethean 210, GK MB500, OB-110
Last edited by Rob22315 : 02-06-2014 at 07:56 AM.