another dumb shifting question: differences between trucks.

I can't say they're harder, but they ARE different. In a conventional the stick comes straight out of the transmission and through the floor into the cab. With a cabover, there are linkages which makes the shifting process "feel sloppier". Also, the stick is MUCH shorter, since it's on the doghouse right next to you. It's really not much longer than one in a passenger car.

 

All shifting, especially floating, it just timing and matching RPM.

As such different engines and different trucks. are going to shift differently.

The rate at which a engine revs or falls is a design characteristic of that engine.

Same with the truck. The driveline friction or inertia is going to be different between different trucks, so the rpm drop of the the unpowered transmission is going to be different between two different trucks.

Then to top it off, different truck manufactures using the same engine may and do specify different programming for the trucks and engines computer. For example, one manufacture may shut of the jake while the transmission is in neutral. Another may leave the jake on as the transmission passes through neutral. Shifting, especially floating, either one of the trucks is going to be vastly different do to the deceleration created by the jake.

But it is not only jake, it could be HP output, fueling rate, speed governance, rpm governance, load governance. Their are lot of variables available to a manufacture in the engines computer and most have an effect on shifting.

 

Well..Maks seem to be a totally different animal(as far as the clutching action goes).The eatons can very(ive drove about 70 different internationals.Its a different personality for most trucks.How fast do the rpm's "fall off" is a lot of it.Some shift good at 1200 some all the way around 1500.Its mostly how fast do the rpm's fall off.JMO

 

I can't stand driving those new Paccar motors paired with Eatons. The throttle response is so incredibly sensitive, you almost have to drive barefoot to control it, and the gears "feel" different than the older style transmission of the same model.

 

I can't get past the 'we use rental trucks exclusively' bit.

Who cares what the trucks shift like, a good driver will know how to adapt within a mile or two, but really renting trucks?

Wow you must have a huge margin for that in your budget.

 

Trucks are like Women? Bill Cosby puts pills in the fuel tanks? One day one is going to put on a pant suit and lie to everyone while running for President? Oh, I get it, 3 of them will divorce you and take all your money.

 

Jealous?

Seriously, I would have leased you a truck cheaper than you would have rented any of them.

You should, it makes more business sense than to rent, I had to rent a truck to move a trailer one time, then a second time which was frustrating, I figured that it was actually cheaper for me to lease a new truck to replace the one that was in the shop if I had to do it a third time.

Yeah it takes some getting used to in a different truck but what I do right now for my pay the bills job is drive a different one almost every day so to me it is not even something that I even think about.