13 rancher 420 to 680 engine swap
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The 420 engine/gearbox is a good one, the 680 is a Lemon of the brightest hue. The pre 2014 420 rear axle however (apart from the IRS version) can't take the power of the 420, never mind a 680 engine.
You may get a post 2012 500FM engine to go straight in, it looks very similar to the 420 motor, and I would bet the power output to the wheels will be close to that of the 680, but you would still have that rubbish rear axle.
You may get a post 2012 500FM engine to go straight in, it looks very similar to the 420 motor, and I would bet the power output to the wheels will be close to that of the 680, but you would still have that rubbish rear axle.
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