Paul, the rear end went out at the beginning of COVID and it took 2 months to replace the rear axle, so if it sits in a GM shop for 30 days they ask if you want to replace or repurchase and I chose repurchaseSubs sounded great!
I just had my 2019 Custom Trail Boss Repurchased by GM and have a some parts for sale
AFE Power Silver Bullet Throttle Body Spacer Part No. 46-34008
AFE Power Magnum Force Stage-2 Cold Air Intake Part No. 54-13058R
Pedal Commander PC77
Short Bed Hard Folding Tonneau Cover by REV Part No. 19418277 (From the Chevrolet's Website)
Bora 1.5" Wheel Adapters (6x139.7 Bolt Pattern 77.8 Hub)
Rear Wheelhousing Liner Set Part No. 84263801 (From Chevrolet's Website)
Trail Boss Amp Rack from LLJ Customs
NVX VAD17001 Class D Monoblock Amp
All wiring needed for stereo for a crewcab
2 10" Sundown Audio SD-3 2-ohm with individual boxes for center space under seat availability
LED License Plate Bulbs
Sealight 6000K Headlight and Brights LEDs
PM if interested