Mackjack525's exhaust note challenge

Mackjack525's Exhaust note challenge. The truck was due for new injectors, that's why I haven't shown this before. Too much black smoke. Truck grossing about 80 tons or 179,000 lbs. Power by Cat 3408. Check out Mackjack525's challenge on video responses.

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How to shift a Spicer 16 speed
How to use a Spicer ProShift transmission in my Kenworth . It is a 16 speed with overdrive. The 16 speed is similar to the 14 speed which is much more common, except the air-shift pattern is different. The first 3 gears in the main box ( controlled with the gearstick ) each have 4 gears on the air shift ( the blue control on the gearstick ). This gives 12 gears. The top 2 gears on the stick you only use 2 airshift positions , like on a 13 or 18 speed RoadRanger , so this gives 16 gears in total. A compound shift is changing gears with the air-shift and main gearbox at the same time. You don't need to use the clutch except when starting and when using the airshift in 1st gear in the main box. All this info is easy for truck drivers who can operate a Road Ranger , which is the most common transmission in Australia. But it is a harder box to use than a Road Ranger.





Like big V8s? Watch this!
View from the cab of my Kenworth going from Melbourne Victoria to Karratha WA with 46 tonnes of re-bar. Gross train weight 77 tonnes on two 45' trailers. My brother's son came with me on this 11,000 km round trip during the school holidays and was the camera man. First clip is the roundabout at Hay NSW. Second clip going through the S - bends at Gladstone SA on the new road train route. Third clip the Heysen Tunnels in the Adelaide hills. We came through the hills in the daytime so we didn't get to see any of the smic - looking interstate trucks which come out at night. Fourth clip the stacked up roadtrain Coolgardie WA. Power of course is Caterpillar's 3408 18 liter V8. Dyno'd at 550 HP at the wheels, equates to about 600 HP at the flywheel. 16 speed Spicer trans.





Mack Superliner V8 roadtrain, great sound !
A few clips of roadtrains around Port Hedland WA, and a nice V8 Mack Superliner leaving Karratha truck stop on it's way to pick up a third trailer. The side-tipper quads gross about 170 tonnes and are carting iron ore from the smaller mines which aren't big enough yet for rail haulage. It's only a short clip because I was trying out my new JVC GZ- EX555 HD camera and external mic, it seems like it's not a bad camera.





Roadtrains! CAT Power!
My truck is leaving Penong Truckstop in South Australia with a load of off-shore drill gear ( nice light load of 10 tons on second trailer ). Power by CAT 3408. "B triple" with 3 trailers at WA / SA border. A load of "Bushmaster" APCs on Kenworth T904 double road train with CAT C15.




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