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GM Square Body - 1973 - 1987 GM Truck Forum
New posts
Gm Square Body
Site News
Here you will find updates to GmSquareBody
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37
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2K
Threads
37
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2K
I
New Badges for Military Service Members, LEO, FireFighters and EMT
May 5, 2026
idahovette
GM Squarebody Forum How To's
How to use the forum software tutorials are posted here
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4
Posts
4
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4
Posts
4
Posting Pictures In A New Thread or A Reply
Aug 25, 2025
MADDAZ
Introduction
Are you new? Post a little about yourself here.
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60.1K
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C
*** u
Today at 1:02 AM
cornholeeo
Preferred Vendors
Auto Accessories Garage
Want to get the full potential out of your GMC C/K? At Auto Accessories Garage we have all the top name brand accessories at rock bottom prices. Click or call 800.663.1570 to learn more!
www.autoaccessoriesgarage.com
Threads
30
Posts
204
Threads
30
Posts
204
About Those Synthetics and Trusting Big Names
Mar 22, 2026
Dejure
'73 - '87 GM Truck Modifications
The SquareBody Reference Library
Part #s, RPO Codes, TSB's, Cast #'s, etc
Threads
305
Posts
6.2K
Sub-forums
Sub-forums
Owners Manuals
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305
Posts
6.2K
85 K10 vortec with AC?
Today at 2:45 PM
Bextreme04
Tech Discussion
Discussion on anything technical or mechanical that doesn't fit in other tech categories.
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5.5K
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77.2K
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5.5K
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77.2K
R
Unusual way to bleed brakes. Just might help someone.
Today at 3:10 PM
Ricko1966
Suspension, Steering & Brakes
Brake Repair, Disc Brake Conversions, Suspension Replacement, Steering & Alignment
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Posts
46.7K
Sub-forums
Sub-forums
Lifted & Off-Road Systems
Brakes
Lowered & Street Systems
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Posts
46.7K
1975 K20 Brake Backing Plates(dust shields) needed
Thursday at 9:57 PM
CheemsK1500
Electrical & Audio
Electrical Accessories & Stereo Equipment.
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Posts
41.1K
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Sub-forums
Stereo & Entertainment Systems
Gauge, Speedo & Instrumentation
Retro-Fit & Aftermarket Accessories
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41.1K
C
75 k10 wiring harness help. Plz
4 minutes ago
CalSgt
Interior
Trim, Seats, Consoles, Door Panels, etc.
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Heat & AC
Seats
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Well that sucks
Yesterday at 1:38 PM
MGD454
Exterior
Tires, Wheels, Paint, Mirrors, Badges, etc.
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Wheels and Tires
Paint and Body
Aftermarket Accessories
Glass & Mirrors
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54.1K
cargo light/ 3rd brake light install
Today at 3:29 PM
mxer147
Engine & Performance
Engines, Engine mods, Chips, Filters, etc.
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107.8K
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Engine Swaps (Gas) LS, Vortec, LT1 , etc.
TBI & EFI Conversions
Diesel 6.2, Conversions Cummins, etc.
Carb Fuel Systems
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7K
Posts
107.8K
M122 blown 5.3 in my 99 silveraydo
Today at 3:43 PM
Vbb199
Transmission & Transfer Case
Shift Kits, Conversions, Adapters, Twin Stick, etc
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Automatic Transmission
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Manual Transmission & Clutch
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700R4 Information Thread
7 minutes ago
bucket
Differential & Driveline
Front and Rear Axles, Lockers, Limited Slip, Yokes, etc
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1.6K
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19.2K
Sub-forums
Sub-forums
Front Diff & Hubs
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19.2K
T
dana 70hd help....4 pinion-2 piece case standard
Today at 11:03 AM
tetind
General Discussion
Off-Roading
Discuss Off-Roading in your squarebody here.
Threads
159
Posts
2.6K
Threads
159
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2.6K
Let's see those 4x4 Squares On Dirt!
Wednesday at 3:20 PM
Jawzjeep
Garage
Discuss tools, shop safety, shop projects and Auto Detailing.
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837
Posts
47.2K
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837
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47.2K
What have you done to your square lately??
Today at 10:16 AM
WFO
Other Vehicles
Discuss makes and models other then the GM Square Bodies here.
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Posts
39K
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39K
H
Show off your non-square project cars.
Today at 1:01 PM
HOTFOOT
Events
If you know of an events or auto shows that are taking place near you, post them in here.
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239
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2.9K
Threads
239
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2.9K
I think I may have stumbled onto some Power Tour guys ?
Saturday at 7:30 PM
WebMonkey
GMSB Classifieds Forum
You will need at least 50 posts and be registered for at least 5 days to post a thread in the classifieds.
For Sale
Have something to sell? This is the place to do so.
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12.8K
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12.8K
Aftermarket chrysler cat converter
Jun 6, 2026
78C10BigTen
Wanted
Needing something the is not being sold in the for sale section? Post it up in here.
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985
Posts
8.3K
Threads
985
Posts
8.3K
BBC Clam Shells
Yesterday at 6:24 PM
82SquareBurb
Amazon Deals
Have any Amazon deals that you want or share with other members or looking for something that Amazon has for sale? Post up or take a look here.
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2
Posts
4
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2
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4
ICT Billet - LT Swap Engine Mount Kit for 2WD 4WD
Nov 19, 2025
Camar068
eBay & Craiglist Listings
Are you selling something truck related on eBay or craigslist or if you see a great deal and want to share it, post it up here.
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490
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26.4K
Threads
490
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26.4K
Found on eBay Listings
May 14, 2026
Burkee1483
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75 k10 wiring harness help. Plz
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Electrical & Audio
700R4 Information Thread
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7 minutes ago
Automatic Transmission
M122 blown 5.3 in my 99 silveraydo
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Today at 3:43 PM
Engine Swaps (Gas) LS, Vortec, LT1 , etc.
cargo light/ 3rd brake light install
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Today at 3:29 PM
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Unusual way to bleed brakes. Just might help someone.
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