JOEYODR

Thought the same thing at first but came to the conclusion what is visible is most likely just the back side of the locker assy. I didn’t have the wheels off the ground when I had the cover off so I didn’t spin it.

Thanks Rav, I don’t see anything like that on the build sheet GM sent me. I’ll paste what I have below. 1SZ - OPTION PACKAGE DISCOUNT 1WT - SILVERADO WT EQUIPMENT GROUP: 4D7 - INTERIOR TRIM 6GG - COMPONENT FRT LH COMPUTER 7GG - COMPONENT FRT RH COMPUTER 8X2 - COMPONENT RR LH NON- COMPUTER 9X2 - COMPONENT RR RH NON-COMPUTER A31 - POWER WINDOWS, DRIVER EXPRESS A91 - REMOTE LOCKING TAILGATE AE7 - SEATS - FRONT 40/20/40 BENCH AKO - GLASS, DEEP-TINTED AL0 - AIRBAG SENSING SYSTEM, PASSENGER AM7 - REAR SEAT FOLDING AQQ - REMOTE KEYLESS ENTRY AU3 - POWER DOOR LOCK SYSTEM AXK - VEHICLE TYPE TRUCK AY0 - AIRBAGS DRIVER AND FRONT PASS BG9 - VINYL FLOOR COVERING BWN - CORNERSTEP, REAR BUMPER C5Z - 7,200 LB GVW RATING C67 - AIR CONDITIONING DL8 - POWER HEATED OUTSIDE MIRRORS E63 - PICK UP BOX EF7 - COUNTRY CODE, U.S.A. FE9 - 50-STATE EMISSIONS FHO - VEHICLE FUEL GASOLINE E10 G80 - AUTO LOCKING REAR DIFFERENTIAL GAZ - SUMMIT WHITE GU6 - REAR AXLE 3.42 RATIO H2Q - DARK ASH / JET BLACK ACCENTS HQY - HEADLAMP COLOR BEZEL, CHROME I19 - ENGINEERING YEAR 2019 IOB - ITL - IDENTIFICATION - INF PASS GEN 2 JD9 - ANTILOCK BRAKES, 4 WHEEL DISC K34 - CRUISE CONTROL KC4 - ENGINE OIL COOLING SYSTEM KG4 - ALTERNATOR, 150 AMPS KI4 - POWER OUTLET, 110-VOLT AC KNP - TRANSMISSION OIL COOLER KRV - REFRIGERANT LOW GWP L83 - ENGINE, 5.3L V8 ECOTEC3 MAH - MARKETING AREA NORTH AMERICA MYC - TRANSMISSION, 6 SPD AUTOMATIC N33 - STEERING COLUMN, TILT NE8 - EVAPORATIVE SYSTEM LEVEL 3 EMISSIONS NK5 - STEERING WHEEL NQG - TRANSFER CASE, MANUAL NTB - EMISSION SYSTEM OST - OSHAWA PLANT PCM - WT CONVENIENCE PACKAGE: * GLASS, DEEP-TINTED * POWER OUTLET, 110-VOLT AC * REMOTE KEYLESS ENTRY, INCL. REMOTE LOCKING TAILGATE * POWER HEATED OUTSIDE MIRRORS PPA - EZ LIFT AND LOWER TAILGATE R4Z - TIRE BRAND-GENERAL-CONTINENTAL R9N - PROCESSING CODE RBZ - 17" ALL-SEASON BLACKWALL TIRES RD6 - WHEELS, 17" PAINTED STEEL RUF - WHEEL, 17" STEEL SPARE SAF - SPARE TIRE LOCK SLM - STOCK ORDERS T4F - HIGH INTENSITY DISCHARGE HEADLAMPS W/ LAMP CONTROL TDM - TEEN DRIVER U2J - DELETE XM RADIO U73 - ANTENNA - FIXED MAST UDC - DRIVER INFORMATION CENTER UE0 - ONSTAR DELETE UJM - TIRE PRESSURE MONITOR SYSTEM WITH TIRE FILL ALERT (EXCL SPARE TIRE) UMN - SPEEDOMETER, MILES & KILO, MILES FOR ODOMETER UQ3 - ENHANCED AUDIO SPEAKERS UVC - REAR VISION CAMERA V22 - CHROME GRILLE SURROUND V76 - RECOVERY HOOKS, FRONT V8D - VEHICLE STATEMENT VH6 - BUMPER, FRONT, BLACK VJG - BUMPER, REAR, BLACK VRK - VAA/COMPONENT REL ROOF TRIM VT7 - OWNERS MANUAL ENGLISH WMK - VIN MODEL YEAR 2019 X88 - MARKET BRAND CHEVROLET XL7 - FREQUENCY RATING 315 MH Z82 - TRAILERING EQUIPMENT PKG Z85 - SUSPENSION PACKAGE ZBZ - TIRE, SPARE 17" BLACKWALL ZY1 - SOLID PAINT

What size diff is this? It has 12 bolts on the cover but I’m reading it’s not a 12 bolt? Sorry, this is my first Chevy.

I saw that you said you read through similar issues. Just putting this link here just in case you didn’t see this and hopefully it will help. https://static.nhtsa.gov/odi/tsbs/2017/MC-10113871-9999.pdf Right now I’m researching an issue where I’m getting u0073 codes inside my EBC and SAS modules. Found what looked like a fuse that got really hot but rings out (ABS Valve? Fuse 25 25A). Now need to look at grounds. Need to find something that shows all ground locations as well. MC-10113871-9999.pdf