Transmission & Drivetrain 4x4 Auto Repair Tips For 4WD Trucks and SUVs
When it comes to traction in off-road situations, differentials play a key role. Do you know the difference between open, locked, and limited slip differentials? Should you have locking differentials on your ride? If so, which kind? Once installed, the trick is knowing when to lock the "diffs" and when not to. The basics start here.
Tips for preventing problems with your automatic transmission.
Tips for insuring correct auto transmission fluid levels in your truck.
Tips for how to make an auto trans live longer.
What do you do if you want to convert your full-time 4wd truck over to part-time 4wd? Here's how it's done on a '75-'79 Dodge.
A partial list of details that make a difference when assembling a differential.
Many things can go wrong inside a differential. Although the hints are often subtle, most impending failures give fair warning in the form of noise. Here's what to listen for and how to fix it.
A chart of popular rear and front end housing widths and bolt patterns.
A graphical illustration of the internal workings of open, posi and locker diffs.
When lifting a vehicle it is not always easy to keep the stock driveline angles. Any variation from the stock angles can cause vibrations that are not only annoying, but can also accelerate u-joint wear. Here's what to do about it.
Some great technical tips to help line up your drive train.
Real life visual examples and graphical illustrations of some common driveline failures and their not-so-common causes.
Economical driveshaft repair for your Ranger.
The most frequently observed causes of vehicle vibrations as related to vehicle speed.
Life expectancy charts -- Information regarding usable and dangerous operating temperatures.
If you have full time front lockers, then tight turns with the hubs locked in and 4WD engaged can be quite challenging. With a full time locker, shifting into 2wd or unlocking a hub may be about the only options available to extricate yourself from a hairy situation. A twin stick will help.
Ring & pinion gear break-in tips to ensure longer life.
Real life visual examples and graphical illustrations of gears. An in-depth look at the Ford 9" and other differentials, including comparisons of Dana 28s, 44s, 60s, and 70s.
For hard-core 'wheeling, slower speeds mean greater control and less strain on your drivetrain. However, hard-core 'wheeling also means big tires, which can drain your horsepower and drop your torque curve, leaving your engine sputtering the slower you go. Here's how to do a Dana 20 TeraLow gear install.
A list of details that make the biggest difference when assembling a differential.
Specs for GM transfer cases 1969 to present year models.
Here's a great introduction to How Manual Transmissions Work, including: The Goal of a Transmission, A Very Simple Transmission, A Real Transmission, Synchronizers, and more.
If the car has manual transmission, usually the only problem can be a worn clutch disk. However, automatic transmission is less reliable, so be sure to check the transmission carefully.
Here's everything you need to know before you drive a standard transmission vehicle for the first time.
Here's how to do a conversion from Auto to Mile Marker manual hubs.
The primary function of a differential is to transfer power to the wheels while allowing them to turn independently at different speeds. Locking Differentials, generally simply called Lockers, are for serious off-roading and challening trails. They are automatic lockers providing 100% traction, 100% of the time on both driving axles.
What's the difference between the different types of differentials (Open, LSD, and Locker) that you can use in a 4x4?
There are a lot of myths regarding the setup and design of differentials. This will set the story straight.
You just installed a new ring & pinion set and youíre ready to feel the power. Hold on, donít burn rubber yet. That new gear set may become scrap metal faster than you can say "burned gear syndrome".
Sloppy shifting beginning to bug you? Try this.
Transmission specs for various makes and models of vehicles.
One off-roader's thoughts about transmissions and transfer cases - why he chose the products he did and some facts about each of his upgrades.
Here's a simple way to change u-joints.