r/GMT400
26k members
r/GMT400 is a subreddit with 26k members. The most common kinds of discussions are solution requests and pain & anger, and the community frequently discusses truck, transmission, looking for, wiring, and fuel, and they frequently recommend/review battery, tire recommendations, and pump.
Use this subreddit to post pictures of your GMT400 trucks, show us your mods, or ask for advice.
Popular Themes in r/GMT400
#1
Solution Requests
: "Looking for winch/bush bumper recommendations and ideas"
2 posts
#2
Pain & Anger
: "Ugh"
1 post
Popular Topics in r/GMT400
#1
Truck
: "Damn I love this Truck"
6 posts
#2
Transmission
6 posts
#3
Looking For
5 posts
#4
Wiring
5 posts
#5
Fuel
4 posts
#6
C1500
: "People seemed bummed about my 94 C1500 getting whooped by a stolen Hyundai. I figured I’d share the video of it taking the hit."
4 posts
#7
1996
: "1996 5.0L - Back on the Road"
3 posts
#8
Headlights
3 posts
#9
Engine
3 posts
#10
Sierra
3 posts
Products Discussed in r/GMT400
Battery
12 reviews
#1
Optima
5.0★ from 4 reviews
#2
Walmart
4.0★ from 2 reviews
#3
NAPA
4.0★ from 1 review
Tire Recommendations
7 reviews
#1
BFG
5.0★ from 2 reviews
#2
Cooper
4.0★ from 1 review
#3
Firestone
5.0★ from 1 review
Pump
2 reviews
#1
EP381
5.0★ from 1 review
#2
Delphi
5.0★ from 1 review
Member Growth in r/GMT400
Yearly
+7k members(37.3%)
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About
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This page gives a focused view of r/GMT400, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: July 15, 2026