back again just spoke to bill in the shop he recons i can get a gearbox for about 360 but as i have two i may be able to swap parts/gears. he recons you fellas can help. part no CH85352A. the pulley at the back spins when motor running but no wheel movement. with motor off when i turn the back wheels the pulley doesn't move. smashed gearing i presume

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muchos gracias

chance favors the prepared mind

motorwannabe