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2002 Avalanche 2500 8.1L
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4
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210
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October 1, 2026
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DIY Bed Slide for the 2002–2013 Chevy Avalanche — Full Build
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0
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118
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September 5, 2026
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GMT800 Instrument Cluster Repair – Common Failures
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12
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167
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September 3, 2026
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GMT800 owners: what year would you buy today, and what would you avoid?
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0
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17
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June 30, 2026
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Don't Install Aftermarket GMT800 Headlights Until You Do This
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0
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35
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June 24, 2026
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8.1L Vortec Spark Plugs: ACDelco 41-983 at .045" Gap — and What to Do When You Break Your Wires
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0
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27
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June 23, 2026
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8.1L Vortec Startup Chatter Fixed: Ditched the 5W-30, Switched to Rotella T4 15W-40
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0
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15
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June 23, 2026
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99-02 GMT800 Double DIN Installation Guide – The Right Way to Do It
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1
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272
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June 12, 2026
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GMT800 4.8 / 5.3 / 6.0 Hot Idle Low Oil Pressure — Post Your Readings and Fixes
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0
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28
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May 25, 2026
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GMT800 Subwoofer Box Build – Under Seat vs Custom Box
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0
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54
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April 12, 2026
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Biggest Tires on Stock GMT800 1500 – No Lift
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0
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76
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April 12, 2026
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Best Cat-Back Exhaust for GMT800 5.3 and 6.0: Sound, Power, and What Actually Fits
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0
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41
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April 12, 2026
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Cheap mods that actually work GMT800
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0
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236
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April 7, 2026
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4L60E common failures GMT800
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0
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41
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April 7, 2026
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Best budget exhaust setups for GMT800 5.3 Silverado Sierra
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0
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28
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April 6, 2026
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GMT800 (1999–2002) Engine Hours
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0
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19
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April 5, 2026
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Swapping a NBS 4.3 to a V8: LS1 and 4.8/5.3 Considerations
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0
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35
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March 18, 2026
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🔥 best sounding gmt800 exhaust?
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0
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32
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March 1, 2026
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OBS vs GMT800 daily driver debate
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0
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16
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March 1, 2026
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GMT800 Boost Auto Wireless Charger
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0
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63
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February 18, 2026
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GMT800 Suburban / Avalanche 2500 Hitch Upgrade Guide — Draw-Tite HD Replacement
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0
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112
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February 18, 2026
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