Here's the building of a custom fiberglass sub box for a classic gm ext. cab pickup. Part 1 of 2. If you have any questions just comment below and ill try to answer asap.
Be sure to check out my other vids. If you guys like the content make sure to hit that sub button and stay tunned for more!
Instagram @Gervaislbz

Gerts wheels in Panoka AB:   / gertswheels  
Wheels, 22x12 8x6.5 -44: https://www.tiswheels.com/tis/wheels/544
Tires, 33x12.5R22: https://grizzlytrucks.ca/product/veno...
Leveling keys: https://www.tdotperformance.ca/rough-...
EFI Live 5 stage tune: (talk to your local deisel truck tunner)
MBRP 5" straight pipe: https://www.tdotperformance.ca/mbrp-s...
8" dumped rolled tip