https://www.jefflilly.com In this tip Jeff shows how to use the T-Nut properly for your speaker mounts in a custom sub-box.
I finished spraying the frame with undercoating, installed the gas tank and fuel filter, replaced the u bolts, checked out the shocks and next I’ll work on replacing the driveshaft. All on my 1989 gmc s15 4.3 long bed. And parting out with a 87 chevy s10.