Diesel engines have high torque but low rpm operating ranges, and carry heavy loads.
The range of gears allows the truck to get moving with a load and bring it up to speed utilizing the best operating conditions of the engine.
That way a reasonable engine size can be used, to operate like a passenger car the engine would have to be the size of the entire cab of the truck, and would use an outrageous amount of fuel.
It could be anywhere from five to 18.
Transmission gears? In the transmission.
Yes it does.
One the 1999 and newer trucks, some 2WD ext cabs and 4WD ext cabs with the 5.3 came with 3.73 gears. Others came with 3.42 gears
There is no maximum. The manufacture could theoretically put as many gears as they want. Mercedes Benz has a 7 speed transmission & Chrysler has an 8 speed transmission. Long haul semi-trucks have 26 gears ratios or more.
How much weight it can tow or carry and how much you need it too. How many gears it has and how easy it is to steer and shift.
Yes
This bike has a six speed gear box, so six gears.
Tracker Trucks can be purchased in many places. Teletrac, Tracker Trucks, The Longboard Store, So Cal Skate Shop, and many other boarding supply shops sell tracker trucks.
it has 6 gears
5 gears
For a North American truck, most of your average fleet trucks will run either a 9 or 10 speed transmission. Owner/operator and heavy haulers tend to have more gears - 13, 15, or 18 (15 speeds are a bit uncommon, though).