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The 18 speed transmission is strong, versatile and also easy to use, when you get the hang of the patternand if friend are knowledgeable with hands-on transmissions.

It’s no the simplest of transmissions if you room just beginning to find out to journey a tractor trailer.

Versatility is the best feature that the 18 speed.


The driver can constantly have the right gear to store the van engine to run at the exactly RPM to save fuel and assist the van engine last.


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For many truck drivers, the 18 rate transmission has much more gears 보다 you’ll ever before need come use, unless probably you’re pulling trains in the mountains or heavy weight.

There’s a equipment for all instances a driver might encounter.


Shift Pattern because that an 18 Speed

The 18 speed transmission is laid out in an ‘H’ pattern.

The easiest way to become familiar through the 18 speed is to practice shifting in an H pattern.

The driver offers second, third, fourth, and fifth, climate splits up into high range. Then, change the H sample again because that sixth, seventh, eighth and also ninth gear.After reaching 9th gear, break-up up to overdrive because that the top gear.

There space plenty of other gears in between, together all main gears have a high range and low range, so that the driver have the right to split any kind of of the gears, double more.

It might sound a bit complex at first, yet it’s really not.

The an ext a driver practices, and also the an ext experience that gains, he may uncover that the gear being used, might not be rather the best one for wherein he desires the RPM’S come be.

In the case, they deserve to be separation up or under accordingly, matching the RPM’S to the engine’s sweet spot.

Drivers who choose floating gears have to like the 18 speed, together 12 the the 18 gears obtainable do not require moving the shifter, as they are split gears.

Related > how to float Gears in a Semi Truck

Steps to changing an 18 rate Transmission


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The 18 speed transmission is laid out in one ‘H’ pattern. The easiest method to become familiar with the 18 rate is to exercise shifting in an H pattern.

The driver supplies second, third, fourth, and fifth, then splits up into high selection and then transition the H pattern again for sixth, seventh, eighth and also ninth gear.After reaching ninth gear, break-up up come overdrive because that the height gear.

There room plenty of other gears in between.

Related >5 Tips because that Truckers For reliable Use that Cruise Control

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18 speed Transmission shift Pattern chart (Gear Pattern)

This is a very straightforward basic chart of the moving pattern of one 18 rate transmission.

This is the best means to recognize the positioning of all 18 gears.



3 reverse Gears

There are 3 reverse speeds in reverse. Why? good question.

3 LO Gears

In this situation, the 3 low forward beginning gears of the 18 speed, are just the ticket come a smooth start.

It’s easy to obtain a hefty load rolling without abusing the clutch.

15 forward Gears

There are 15 forward gears in 3 ‘H Positions’

For the typical driver, plenty of of this gears will never ever be used.

It depends on the weight of the load, terrain and several other factors.

REMEMBER: learning to change an 18 speed transmission sample is no difficult. Nonetheless, that does take some exercise time to shift smoothly.


7 moving Tips for Truckers

Practice. Shifting properly is sort of favor riding a bike. The an ext you practice, the far better you’ll gain at it.Every van is different. You deserve to have two trucks, identically spec’ed and they’ll transition differently. Every truck shifts just a little differently. It’s choose they each have actually their own personality.Find the sweet spot. Just take the time to gain to recognize what your truck likes. Find where the sweet spots are.Be methodical. Shifting have to be excellent slowly and also methodically. Feather the clutch and feather the fuel to assist slide it right into gear.Shift smoothly. Never try to force a gear. That isn’t necessary. It will slide in basically on its own if every little thing is inside wall up just right (the speed, the RPM and also the shifter.)Don’t rush. Relax.

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It’s no something to be rushed. Did I mention practice? and yes. Practice, practice, practice.

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