r/GMT800 is a subreddit with 20k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses silverado, transmission, gmt800, engine, and exhaust, and they frequently recommend/review muffler, leveling kit, and lights.
Everything 1999 - 2006 Chevy and GMC trucks and SUVs.
Popular Themes in r/GMT800
#1
Advice Requests
: "Need advice"
10 posts
#2
Solution Requests
: "Had a small mistake a month ago and messed up my truck bed. Find a replacement stock bed or toss on a flat bed?"
5 posts
#3
Pain & Anger
: "MY AC JUST TOOK A DUMP ON MY 02 SILVERADO AND IT SOUNDS LIKE A WASHIN MACHINE FULL OF HAMMERS"
5 posts
#4
Ideas
: "Hear me out....."
2 posts
#5
Money Talk
: "Light hauling today, 21l-100km or 11mpg. What is your mileage towing an open trailer?"
1 post
Popular Topics in r/GMT800
#1
Silverado
: "Valve train on a 06 Silverado with 305k 5.3"
14 posts
#2
Transmission
: "Transmission went out in my half ton so I just went and got a 3/4 ton."
12 posts
#3
Gmt800
: "U-joints Gmt800"
12 posts
#4
Engine
: "Reman or used Engine ?"
10 posts
#5
Exhaust
: "Can I move my avalanche out of my garage w/o Exhaust manifolds?"
9 posts
#6
Ac
: "Ain’t no colder Ac than a gmt800"
9 posts
#7
Radio
: "Stock Radios"
7 posts
#8
Steering
7 posts
#9
Lights
7 posts
#10
Brakes
6 posts
Products Discussed in r/GMT800
Muffler
11 reviews
#1
Flowmaster
4.3★ from 8 reviews
#2
AP Exhaust
4.0★ from 1 review
#3
Magnaflow
4.0★ from 1 review
Leveling Kit
8 reviews
#1
Rough Country
3.3★ from 4 reviews
#2
Bilstein
4.0★ from 3 reviews
#3
KSP
4.0★ from 1 review
Lights
3 reviews
#1
Amazon
4.0★ from 1 review
#2
Epic Lighting
5.0★ from 1 review
#3
DEPO
5.0★ from 1 review
Member Growth in r/GMT800
Yearly
+8k members(72.0%)
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About
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Last updated: June 10, 2026