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6346 Uni-Tred Space Hauler

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The Uni-Tred Space Hauler is a single tread vehicle that held a couple of figures in a red enclosure located on top. The vehicle could be dissembled into three parts and re-assembled in a few combination. The unique gearing of the Uni-Tred enabled it to pull the Space Bubble over obsticles at a fairly high rate of speed. A middle tier (called simply "white supply base" in the instructions) could be withdrawn from the Uni-Tred and used to haul cargo (two rubber-band stays allowed cargo to be sturdily tied-down to the platform without flying off as the Uni-Tred traversed heavy terrain).

The Uni-Tred has an interesting front grill-like feature that seems out of place in context with the no-atmosphere moon. In all, still a very cool vehicle and a staple in the MMM collection.

Additional Vehicle Images:
Front | Top | Side | Back | Bottom
Parts Front | Parts Back

The box made of corrugated cardboard printed on all sides (in black, white and blue ink), except the front and top, which have applied a full-color, process-printed label. The package measures 11" by 9 1/2" by 12 5/8". Copyright is 1967. The box reads: "Motorized Lunar Transport Geared to go anywhere with Planetronic Shift! - Automatically Shifts as it Climbs Mountains! - Bites into Slippery Surfaces with Hundreds of Space Teeth! - Tows Space Bubble Across Rugged Terrain! - Control Cab Fits All Mattel Astronauts! - Cab Lifts Off for Flat-Bed Transport! - Flat-Bed Lifts Off for Convoy Use!" and "Astronauts and Space Bubble not Included!." with "Battery powered - 2 "D" batteries not included!"

Additional Packaging Images:
Bottom | Front | Back | End | Insert | Open

Sticker Sheet:

Mattel #6346-0920 Uni-Tred Space Hauler

Mattel Catalog Specifications:
(First appearance: Mattel Toys 1969 Fall Catalog page 55)
New Uni-Tred #6346
Invincible climbing power! Dynamic lunar transport claws up sheer inclines up to 45° while downshifting automatically! When forced to scale an impossible surface, the UNI-TRED inches upward - until hurled to the ground - then gamely advances for a second attempt!
Battery-powered track detaches from UNI-TRED cab and continues to roll! 2 "D" batteries and astronaut not included.
Std. Pack: Doz.
Wt: 9 Lbs.
Variations: John's Notes:
It's interesting that the 6339 Uni-Tred and Space Bubble set actually has an earlier Stock Number. I think this was originally intended as a combination set, and later split up into each component. Designs appear to be from a caterpillar-style construction vehicle such as a bulldozer or tank. This is a unique vehicle and does not appear to be based on any actual space designs.

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