Sorry, I misunderstood your goal. Retaining pedals is going to be tricky. If the rear axle is turning both rear wheels at once, going straight would be no problem, but with a freewheel on both rear wheels, turns would would be hard because the inside wheel would be trying to keep up with the outside wheel which would be traveling faster.oh and the garden tractor idea is cool... but how would i retain the pedal feature?
The outside wheel may swing around on its own, but it just seems counterproductive or inefficient to drive the inside wheel in a turn. Puts a lot of stress on the power and drive train and may end up with chain skipping and or belt slippage. Driving the outside wheel will make the surrey turn on a dime with little effort.seems to me the outside wheel would just be freewheeling and the inside wheel would be driving.... only one end of my jackshaft would be working in a turn.... Right?
The shaft sounds like a good idea, but you can have a shaft just as you describe only with a differential in the center. Also the diffy I'm referring to needs pillow blocks out towards the ends and none in the middle at the sprocket because of the way they're made internally. I've posted a link so you can see what im talking about. I found one on ebay a few years ago for $30. Differential, Peerless 100-008A - Tecumseh 794347 : Farmers Exchangenot really a jackshaft i guess, my idea is a full width keyed drive shaft with a sprocket on each end to drive the wheels, and a sprocket to the engine in the center, and a pillow block at each end and one near the center sprocket...