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1500 up and 1000 down is a general rule of thumb... it'll vary by different motors. For example, you're actually better off to shift up with a Mercedes-Benz MBE or Volvo VED motor around 1700 RPMs. All the same, the general rule of thumb applies to a straight truck just as it does a combination vehicle... why wouldn't it, after all?

What may change - and this will be dependent on how the vehicle is geared - will be your recovery gear. I'm assuming in driving school you were taught to add the two numbers of your current speed (in the nearest increment of five) to get your recovery gear from that. Thus, if you missed a gear, and your current speed was 25 miles per hour, you would add 2 + 5 = 7, and 7th gear would be your recovery gear. Many straight trucks - especially those intended for sitework use - are geared much lower, and you may need to add one number to your total to find your recovery gear, so that, at 25 miles per hour, you'd add 2 + 5 for a total of 7 then add one more, and 8th gear would be your recovery gear.

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Q: What are the shifting speeds for a straight truck is it 1500 for the up shift and 1000 for the down shift like on a combination vehicle?
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