need help specing team truck going west

IMHO i would just hold out for a 3.55. dont seet he pint of a 2.64 rears esp if you have to lots of hil climbing. i would go with a 13 spd manual

 

I run 3.70 against tall 24 rubber on a .73 final over (most 13's and 18's will final at .73) and 70/71 is just about 1500. My motor does best 14/1450. Gotta take motor sweet spot into account in your figuring.

 

How are you running 70-72 in Toronto? I was under the impression the speed nazis had you cut back to 65 max.

 

so are you staying in canada hauling canadian weights? max reefer weight. is this gonna be 46500kg tri or are you doing tandem? when you say out west do you mean sask or all the way up the mountains. these are very very important things to account to.

no matter what the responce you give the very first thing you need to keep in your head is when you buy a truck you are no longer a driver so quit being a ####ing driver. if you are going to buy a truck then this is a business and needs to be treated like a business. what the hell are you doing going 120 in a rig!

on my run (keep in mind I haul 63500kg) if I do one round trip at 100km/hr I use 300 litres. 105 is 330 litres. 110 is 365 litres.... I do 1.5 loads a day. running your speed I would save 100 bucks a day more than you would. I work 20 days a month so that's 2000 dollars I would make more than you. you being the new owner op you are will think you made more because in that month you got another load on me but I promise you that at the end of the year when we compare our accounting sheets that I will have netted more then you by a long shot. my truck will have been bought with my fuel savings and my boat bought with my maintinamce savings while your finance company is reposessing your rig because you can't afford the inframe it needs.

I know all this cause it's the exact same #### I did when I started.

 

What motor ? This will play a factor!

If you want a good in between, go 18spd, 22.5LP fuel efficient rubber and 3.08 rears for 70-72mph cruising on most motors.

Good cruising rpm and will still pull very similar to the 3.55 trucks, even 3.7 trucks with a decent power spec

 

rear gears don't make one speck of difference as to how a truck pulls a hill... the only difference rear gears make going uphill is what gear your transmission will be in.

I have the exact setup that KB3MMX just described, LP22.5s 3.08s and an 18sp and I blow by people every day who say 3.08s won't pull. They're exactly the same as having 3.55s, just a half gear different in the transmission. If I had it to do over again, I would go to a 2.79 or 2.64.

 

I wouldn't agree with that statement one bit. I am on a run with 30 trucks hauling the exact same weight to the exact same place every single day pulling 140000lbs and there are trucks with all types of specs doing it. the guys with lower gears get up the hills way faster and easier.

my 06 volvo with a 465 d12 would be bogging it climbing these hills if I had 373 instead of 430. I had a truck same senario with 358 and I swapped them to 411 and you can bet your ### I was climbing hills easier and faster on the speedo which saved fuel.

 

You're just plain wrong. Physics can't be denied! The only time that rear gears can reasonably make a difference is in a 9 or 10 speed, where you might fall between two gears.

 

I really don't care what you think about physics. Your seriously going to sit here and try and tell me that 2 identical trucks with the same load and only difference being one has 4:30 and one has 3:21 hauling 100000lbs up a BC mountain that they will arrive at the top of the mountain at the same time? that's your physics?

that's a extra entire gear difference.... an entire driveline rotation putting more grunt behind it.

not to argue physics as I'm just a lowly trucker but in that senario the 321 trucks gonna drop more gears which no matter what is going to slow em down.

I can't argue the physics of it, all I can talk about it life experience and as I said, 30 trucks all doing the exact same load everyday back and forth back and forth we get to talking a little hear and there as load and unload is within 300 miles. I haul oil that is automatically stopped at a certain amount so weights are always bang on the same.

At this point I guess it don't really matter as the op hasn't even checked back in yet anyways.