Never drove a heavy truck with a syncro, just non sync boxes. Keep in mind a road ranger does have synchros....on the air shifted range change, i.e. 5th to 6th on a 10 speed, the switch flick is syncronized with an air shifter moving it, the main lever throw is not.
Crash box in a tractor is different story.
I run both synchro and unsynchro tractors, in road haulage no real difference pulling rolling loads on a hard surface at speed, but I don't have to clutch the unsynchro tractor, just float the gears like a heavy truck.
In the field, the crash box is a pain, very rarely can you make a shift on the move, must come to a complete stop. Synchro tractor stab the clutch and move the stick. Can even do that with a non rolling load if needed.
Powershift really shines in tillage work, upshift and no interruption of power, just accelerate, sync and unsync you come to a stop the moment you clutch.
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Today's Featured Article - A Brief History of Tractors in Australia - by Bob Kavanagh. After Captain Cook's exploration of the east coast in 1770 the British Government decided to establish a penal colony in Australia. The first fleet arrived in 1788 and consisted mainly of convicts who were poorly equipped and new little of farming techniques. The colony remained far from self-supporting and it was not until the early 1800's that things started to improve. Free settlers started to arrive, they followed the explorers across the mountains and where land was suitable set up farms. T
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