FullsizeChevy

Topic	Replies	Views	Activity
What Did You Do To Your Truck Today? General Truck Discussion weekly-thread , garage-life , build-updates , maintenance , mods What did you do to your truck today? Big job, small fix, wash, parts order, maintenance, tow job, wiring repair, suspension work, exhaust, rust repair — post it here. This thread is for quick updates, shop photos, prog…	4	79	August 25, 2026
New Member Guide: Start Here — How FSC Works & Where to Post New Member Check-In	0	27	April 14, 2026
Technical Information Notice — Read Before Performing Repairs or Modifications Forum Rules & FAQ	0	10	May 26, 2026
Welcome to FullsizeChevy! :wave: Welcome to FSC	0	25	November 9, 2025
DIY Bed Slide for the 2002–2013 Chevy Avalanche — Full Build Exterior gmt900 , how-to , avalanche , gmt800	0	8	September 5, 2026
RPO Decoder — bugs, missing codes, and feedback General Truck Discussion	5	39	September 5, 2026
2004 Tahoe warm front driver and passenger but still cool in back Interior	3	6	September 4, 2026
GMT800 Instrument Cluster Repair – Common Failures Technical & Maintenance gmt800-nbs , gmt800 , electrical , how-to , dash	12	117	September 3, 2026
Tested 4 Products on My Faded Avalanche Tonneau Cover Detailing gmt900 , detailing , avalanche	0	7	September 2, 2026
LED & HID Lighting Upgrades for GM Trucks: Headlights, Pods & Bars General Lighting	2	18	September 1, 2026
2017 Silverado Intermittent Heavy Vibration when Braking Technical & Maintenance	3	13	September 1, 2026
DIY Headlight Restoration on My 2007 Avalanche — 400 to 3000 Grit + Coating Exterior gmt900 , lighting , how-to	0	15	August 30, 2026
Building out a resource hub — first up is an RPO decoder, and I want your input Suggestions & Site Feedback	4	20	August 28, 2026
GM RPO Decoder and 24,000-code database, free FSC Announcements	0	17	August 28, 2026
Post your real MPG — new calculator is live General Truck Discussion	0	10	August 26, 2026
Which GMT800 engine did you end up with — 4.8, 5.3, 6.0, or 8.1? Technical & Maintenance	2	14	August 25, 2026
Introduce Yourself & Show Us Your Truck! New Member Check-In	5	34	August 25, 2026
Founding Five Build Thread Promotion — Official Terms Builds & Projects	1	4	August 24, 2026
NewAge Bold 9-Piece Garage Cabinets — My 7-Month Review Shop Talk (Garage Life)	0	11	August 24, 2026
Fuel Pump Replacement on GMT800 Trucks: Step-by-Step Technical & Maintenance	2	38	August 24, 2026
2004 Tahoe In Progress In Progress	0	19	August 24, 2026
How I Cleaned This Dirty Chevy Engine Bay – Products and Process Detailing	0	10	August 19, 2026
1952 Massey Harris 30 — 6V to 12V Negative Ground Conversion (Delco 10SI, Wiring Diagram, Pulley Math) In Progress antique , massey-harris , 12v-conversion , alternator , wiring-diagram	0	35	August 15, 2026
1976 Cub Cadet 1450 Revival In Progress antique , cub-cadet , 1450 , ih-cub-cadet	5	44	August 13, 2026
5.3L V8 Misfire Diagnosis (P0301) — Finding a Bad Ignition Coil \| 2014 Sierra 1500 Technical & Maintenance k2xx , silverado , sierra , how-to	0	22	August 12, 2026
K2XX Catch Can Install — 2014–2018 Silverado / Sierra (K&N 81-0805) Performance, Mods & Tuning k2xx , silverado , sierra , how-to , catch-can	0	15	August 9, 2026
2000 K2500 Chevy CC Dash Question Interior	4	55	July 29, 2026
2018 Silverado AFM/DOD Delete Performance, Mods & Tuning	2	34	July 29, 2026
DPF Delete vs DPF Cleaning on Duramax LMM and LML: What You Need to Know Diesel Tuning & Emissions	1	22	July 25, 2026
Duramax DEF System Problems: LML and L5P NOx Sensor, SCR Catalyst, and DEF Pump Failures LB7 / LLY / LBZ / LMM	1	38	July 25, 2026

What Did You Do To Your Truck Today?

What did you do to your truck today? Big job, small fix, wash, parts order, maintenance, tow job, wiring repair, suspension work, exhaust, rust repair — post it here. This thread is for quick updates, shop photos, prog…