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LEGO Alternate Builds!

SETS
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- BIONICLE
- Building Set with People
- Castle
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- Fabuland
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- LEGOLAND
- Model Team
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- Technic
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Alternate Builds Town Town Alternate Builds Town Jr Very Small Builds Wrecker

6423 – Back A

July 10, 2026July 10, 2026 Master Builder 3294 Views

From: 6423: Tow-away Truck
Name: TBD
Submitted by: USER
Instructions:

← 6423: Tow-away Truck
4557: Freight Loading Station →

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About This Site

There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

Adventurers
Aquazone
BATMAN
Bionicle
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
Town
Universal Building Set
Western
More Sets
Misc

Useful Links

Submit Instructions!
New Instructions
New Official Sets
New Alternate Builds
Minifigs
Very Small Builds (<35 pcs)
Small Builds (<100 pcs)
Medium Builds (<200 pcs)
Large Builds (<400 pcs)
Extra Large Builds (>400 pcs)
How BOTBB was Built

In Honor of 1526

The classic space set that never was.

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