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Welcome Toyota Tundra - III
This topic is a continuation of Topic 866....
Welcome, Toyota Tundra - II. Please continue
these discussions here.
Front Porch Philosopher
SUV, Pickups, & Aftermarket and Accessories Host
Welcome, Toyota Tundra - II. Please continue
these discussions here.
Front Porch Philosopher
SUV, Pickups, & Aftermarket and Accessories Host
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Any new word on milage.
Thanks
The Tundra has a transfer case which sends exactly 50% of the power front and rear. It is not as advanced of a system but much less prone to problems down the road. I have been using this type of a system for years on various Toyota trucks and have never once been stuck. I do use it off road some during hunting season and I tow a boat. Even on very slippery and steep ramps I am able to gain traction when in 4 wheel drive.
Let me know if you need a definition of open versus limited slip differentials.
I guess Iam not entirely sure how limited slip would actually benefit the 4wd, although I can imagine how a locking diff would. Ive also heard that limited slip diffs, depending on their construction, can wear out.
Thanks
606
Limited slip differentials have a series of clutches encased in a heavy liquid which hardens when agitated. This locks the clutches and transfers power to the wheel that is not slipping. You will hear and feel a thud as the power is transferred.
The downside to LSD is that they require more maintenance and don't last as long as an open differential. Toyota does not offer a LSD on their trucks because they have yet to find one that will last beyond 120K miles. That is not an acceptable standard for Toyota.
Toyota does offer a locking differential on the Tacoma. You manually push a button and a worm gear is sent into your rear differential. This locks the left and right side together. Never turn a corner like this.
As far as need for any of this on a 4 wheel drive, I have never needed any of that. I don't do anything real hard core, but I do drive in snow, mud, rocks and tow a boat. If I lack traction in the rear end, I engage the 4WD system. I have always been able to get traction that way.
1. axle ratio (effective with bigger tires)
(original tire diameter/new tire diameter)x original axle ratio= effective ratio
example (27"/32.5")X 3.50 ratio= 2.91 effective ratio
2. rpm and speed
(original tire diameter/new tire diameter)X rpm@mph = new rpm@mph
example for 55 mph (27"/32.5") X 2400rpm = 1985 rpm@55mph with new tires
3. speedometer
(new tire diameter/original tire diameter) X indicated speed = actual speed with new tires
example (32.5"/27") X 55 mph = 66.2 mph actual speed with new tires
4. needed axle ratio to get original ratio back after bigger tires
(new tire diameter/original tire diameter) X original axle ratio = required axle ratio
example (32.5"/27") X 3.50 original axle ratio = 4.20 required axle ratio
Hope these calculations work for y'all.
Thanks Again......
BTW, those little Tacos can be very squirrelly. I nearly lost it last winter while driving one in only 2 inches of snow. Try putting some weight over the rear axle next time.
Cliffy? Any news on aftermarket slips for the Tun yet? Not that I feel need one but if folks wanna choice that may be the only way with Toyotas limited configurations.
4 or 5 trips to Mammoth tells me you have too much free time. Get the 4WD and never worry about it. The satisfaction of knowing you can go nearly anywhere is worth the extra money and gas in my opinion.
I was on a side street trying to pull out onto a busy highway. I knew I would lose traction and pitch the truck sideways if I tried to accelerate hard. I put the truck in 4wd, got on it hard and didn't slip one bit, I quickly switched back to 2wd.
I know you're not supposed to use 4wd on pavement as you can break the gears. Do you think what i did was acceptable?
Also on my commute, I drive over a winding, steep mountain pass. In the rain, In 2wd, in any truck, the rear is prone to lose traction and swing around when accelerating up hill. I guess what I'm asking is, is it ok to use 4wd on wet, slippery pavement?
I have owned/seen many trucks (cars too) with limited slip diffs and they lasted more than 120K. Toyota could build one if they wanted to. The real question is why they didn't want to.
I have owned/seen many trucks (cars too) with limited slip diffs and they lasted more than 120K. Toyota could build one if they wanted to. The real question is why they didn't want to.
As far as mountain driving, I'm not sure I would make a habit of it especially if you exceed 50 MPH. If your tires do have traction and you don't slip around a corner, it may cause you to hop which can lead to a loss of control. Use common sense and pay attention to what the truck is doing.
You will notice that the owner's manual tells you to drive one day a month in 4WD. This is to redistribute the grease in the bearings and will prolong hub life. Wait for a rainy day or a day you don't need to turn to do this.
We are closing now and I will be hunting for the next few days. See ya'll on Wednesday.
For a discourse on the 2000 LC 4 wheel drive system, see me on Wednesday as it is far too complex for a guy planning a hunt tomorrow.
Congratulations on the limited slips. I'm just telling you what an engineering geek from Toyota told me a year ago.
Don't think I'll be offroad like your adventures, but it's great to know the Tundra will handle those situations with ease!
cliffy1
I live only 4 "easy" hours from Mammoth. Half my trips there are payoffs to my son for another semester of good grades!
artp
Thanks for mentioning the need for "on highway" traction that only 4WD will provide. I can think of many situations when I thought "if only". Think of it as a hidden saftey feature.
Curios... Does Cliffy1 work at a Toyota dealer?
Will be back.....
mijtak; I looked 4ever for a good Tundra discussion board and only found this and built one of my own: www.homejack.com/tundra. The mileage you're getting only after 350 miles sounds great. It is the V8 right? I'm still doing around 15mpg with over 2k miles but Colorado has the oxegenated gas and higher altitudes cut down MPG too along with 3k' of elevation every business day.
Cliffy; not interested in changing anything about the 4WD system, so far it rocks, but I thought you may know of aftermarket diffs for the Tundra for those interested. Hope you had a good hunt.
http://www.tundrasolutions.com/members.htm
http://www.Tundratoys.com/readers.html
Good luck.
Buzzman2- Yes, I do work at a Toyota Dealership. I am the Internet Sales Director here and am also an avid truck nut. I don't want to violate the house rules about soliciting for business but I will be happy to answer any questions you have. My profile has my direct e-mail address.
Reed4- Sounds like you live near my old stomping grounds in SoCal. I used to tear up the hills and mountains around Redlands in an '86 Toyota truck. Mammoth is awesome but I haven't skied since moving East.
Motor106- Glad to hear you ordered one. I ordered mine over a month ago. It has been sitting at the port for 3 weeks now on a train that they can't offload due to a derailment. Four months is extreme. What part of the country do you live in? I may be able to get you more info on availability in your area. Contact me privately at the e-mail on my profile.
I'll be checking back today but will be out Monday and Tuesday. The deer are plotting their escape now.
Bert
I've had great luck with my Toy dealer in the past so I'm hoping to get it fixed (rechomed) or replaced. Anyone have experience with rechoming Toy bumpers? Or, should I just hold firm and ask for a new bumper for my nearly new truck?
Thanks for any ideas.
in the latter case no one may view your profile without HOST privileges. (You may be secret from each other, but the SHADOW knows....)
Front Porch Philosopher
SUV, Pickups, & Aftermarket and Accessories Host
As for the oil reset light, apparently if you wait long enough after reseting the computer, the indicator light will flash. I don't know?
option . also does it make sense to get the bedliner and cover ? //Peter
Your bedliner / cover question is confusing. The bedliner is to protect the bed from scratches (more on that in a minute) while the tonneanu cover is to streamline your bed and to protect valuables (although soft ones really don't do that). There may also be issues with an over the rail bedliner and a cover, depending on the cover.
My truck had the Toyota under the rail bedliner installed at the distributor. I didn't bother having the dealer take it out. It has totally sanded off the paint on my bed. I'll be taking it out soon, and have a spray on bedliner installed. IMHO bedliners do way more damage to your truck that without one, they just hide all the damage. I wrote a long post on my experiences with bedliners in the Welcome Toyota Tundra - II topic #822 post #271.
Anyway, save your money on the option, and buy a spray in liner. You won't regret it.
It seemed to me that some folks where just running their tanks down to near empty and then dividing their miles since last fill up by 26! If this is true, no wonder we see those 12 mpg readings show up sometimes!
To calc the mpg you need to start by filling up your tank and resetting one of your trip odo's to zero. There are lots of variables in filling up, (vehicle tilted to one side, different gas pump nozzles shutting off differently, etc..) but try to be consistent. Then on your next fill up, Toyota recommends not letting your tank fall below ¼ full, take the number of miles on your trip odometer and divide them by the gallons it takes to fill it up. For example, 255.1 miles divided by 15.027 gallons = 16.976 mpg. That's it. Just remember to reset your trip odometer before you pull out, and your good to go again.
After 5078 miles, my 4x4 Access Cab Limited with TRD and a hitch, I'm varying from a low of 14.075 to a high of 16.976, just depending on where I'm driving and the way I'm driving. I live in the mountains so even when I'm on the highway it's a lot of slowing down and speeding up. I also still can't stop drag racing at every red light. By the way, I haven't been beaten yet. You should have seen the look on two guys' faces when I beat their Mustang Saturday night. I beat them to 55 by quite a few car lengths. They tried, but when the Tundra engine reaches 3000 RPM I leave'em behind! Must have been a V6??
Sorry, I had the old topic # wrong. Here's the correct numbers.
See: Welcome Toyota Tundra - II topic #866 post #271.
This is my real life experiences with the horrors of bedliners and the pleasures of spray on liners.