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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
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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
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4
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4
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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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60.1K
New Grumpy Guy
Today at 12:47 AM
Rusty Nail
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
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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
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305
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6.2K
Sub-forums
Sub-forums
Owners Manuals
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305
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sound deadning
Yesterday at 3:21 PM
TotalyHucked
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
Posts
77.2K
Radiator Support Bushings: Is this correct?
51 minutes ago
DoubleDingo
Suspension, Steering & Brakes
Brake Repair, Disc Brake Conversions, Suspension Replacement, Steering & Alignment
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46.7K
Sub-forums
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Lifted & Off-Road Systems
Brakes
Lowered & Street Systems
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Posts
46.7K
8
How Will My Square Body Look With XX Lift and XX Tires?
Today at 9:58 AM
83K31003
Electrical & Audio
Electrical Accessories & Stereo Equipment.
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41K
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Stereo & Entertainment Systems
Gauge, Speedo & Instrumentation
Retro-Fit & Aftermarket Accessories
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41K
I
Grounding question
Today at 10:17 AM
idahovette
Interior
Trim, Seats, Consoles, Door Panels, etc.
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Heat & AC
Seats
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29.5K
Wood bead seat cover
19 minutes ago
Grit dog
Exterior
Tires, Wheels, Paint, Mirrors, Badges, etc.
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54.1K
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Wheels and Tires
Paint and Body
Aftermarket Accessories
Glass & Mirrors
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54.1K
Upper Door seal question
Today at 10:02 AM
dans78c10
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
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107.8K
Chuck’s engine build thread!
Today at 11:24 AM
ChuckN
Transmission & Transfer Case
Shift Kits, Conversions, Adapters, Twin Stick, etc
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35.4K
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Automatic Transmission
Transfer Case
Manual Transmission & Clutch
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2.9K
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35.4K
Tightening down front yoke nut stops NP205 from turning
Yesterday at 12:38 PM
Mark80K15
Differential & Driveline
Front and Rear Axles, Lockers, Limited Slip, Yokes, etc
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1.6K
Posts
19.2K
Sub-forums
Sub-forums
Front Diff & Hubs
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1.6K
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19.2K
F
Dually hubs
Today at 10:04 AM
Fubar500hp
General Discussion
Off-Roading
Discuss Off-Roading in your squarebody here.
Threads
159
Posts
2.6K
Threads
159
Posts
2.6K
Let's see those 4x4 Squares On Dirt!
Yesterday at 3:20 PM
Jawzjeep
Garage
Discuss tools, shop safety, shop projects and Auto Detailing.
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836
Posts
47.2K
Threads
836
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47.2K
What have you done to your square lately??
Today at 9:31 AM
TotalyHucked
Other Vehicles
Discuss makes and models other then the GM Square Bodies here.
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38.9K
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1.1K
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38.9K
Well, so I bought a Toyota.
Today at 3:49 AM
Rusty Nail
Events
If you know of an events or auto shows that are taking place near you, post them in here.
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238
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2.9K
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Power Tour 2026
Today at 10:32 AM
legopnuematic
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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Aftermarket chrysler cat converter
Saturday at 9:20 AM
78C10BigTen
Wanted
Needing something the is not being sold in the for sale section? Post it up in here.
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985
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8.3K
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985
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BBC Clam Shells
Yesterday at 10:17 PM
bucket
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
Latest posts
Wood bead seat cover
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19 minutes ago
Interior
Radiator Support Bushings: Is this correct?
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51 minutes ago
Tech Discussion
Chuck’s engine build thread!
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Today at 11:24 AM
Engine & Performance
Well that sucks
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