Is 956 the same as 853?

Not quite. Both have 87 unique parts and the same main colours, but 853 has 608 pieces and 956 has 603, so the parts lists differ slightly.

Why is it listed under Expert Builder?

Expert Builder was an early name for the range, used mainly in North America, and the catalogue keeps it for sets from those years.

Does it include minifigures?

No, the Auto Chassis 956 has 603 pieces and no minifigures.

Expert Builder

Auto Chassis

The Auto Chassis 956 is a 1978 set from the second year of the line that became Technic. Its 603 pieces build an open car chassis in bold primary colours.

Set number: 956
Year: 1978
Pieces: 603
Minifigures: 0
Theme: Expert Builder
Different parts: 87

What can I build with it?

Parts list 87

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Description

Early Technic in primary colours

The main colours are red, light grey, yellow and blue, exactly the kind of bright palette that defined the range in the late 1970s. Everything is built from studded Technic bricks joined with pins and axles, with no studless beams or panels in sight. Leaving off the bodywork puts the frame, axles and gears on show, which was the whole point of a chassis model. It is a set that explains itself as you build it.

Compared with 853

The catalogue also lists an Auto Chassis 853 from 1977, and the figures are very close. Set 853 has 608 pieces against 603 here, both have 87 unique parts, and both share the same four main colours. If you own one, comparing the two parts lists on this site is the quickest way to see where they differ and whether your pieces could stretch to the other set as well. It is also a useful cross-check if you are unsure which of the two chassis a loose pile of early parts originally came from.

Small range, big quantities

Just 87 unique parts across 603 pieces shows how limited the element range was in the early years. Basic bricks, beams, pins and axles appear in large numbers, so sorting is easy and the build relies on simple shapes used well. The light grey is the original shade, noticeably warmer than today's light bluish grey, so keep that in mind when replacing missing parts. There are no minifigures in the set.

Completing a 1978 copy

Most copies of this set turn up secondhand and are rarely complete. The parts list on this page lets you check your copy element by element. If you have a larger box of early Technic parts, the What can I build? tool compares them with other sets and shows which ones you could build. With two such similar chassis sets in the catalogue, it can quickly tell you which one is closer to complete.

FAQ

Is 956 the same as 853?: Not quite. Both have 87 unique parts and the same main colours, but 853 has 608 pieces and 956 has 603, so the parts lists differ slightly.
Why is it listed under Expert Builder?: Expert Builder was an early name for the range, used mainly in North America, and the catalogue keeps it for sets from those years.
Does it include minifigures?: No, the Auto Chassis 956 has 603 pieces and no minifigures.