I built 2 versions of the MOD, an A version all made from LEGO technic parts, and a B version were I used a tipper bed (peeron ref. 52045) from the LEGO City Dump Truck 7344 set.
I used 3 Power Function motors, 2 IR receivers, and one remote. One M PF motor controls steering, another raises the tipper bed, an one PF XL motor for traction.
The IR receivers were partially hidden below the battery box.
Version A

BrickShelf: http://www.brickshel...ry.cgi?f=357989
Version B

BrickShelf: http://www.brickshel...ry.cgi?f=357990
Steering
Steering was an head breaker since I didn't want to plug a motor directly to the gear rack, because it causes sudden turns instead of smooth and controlled ones.

BrickShelf: http://www.brickshel...ry.cgi?f=357986
Video on youtube:
It's not perfect, but it's good enough for me, for now, so I hope you like it.
Merry Christmas to everybody
Regards




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