The TREMEC Toolbox contains:
Driveline Angle Finder, Vehicle Speed Calculator,
RPM Calculator, Tire Size Calculator

These days, you can do just about anything on a smartphone—check the weather, order pizza… and now, thanks to the TREMEC free Tool Box app, you can do a host of critical car-building functions as well!
Featuring multiple tools in one easy-to-use interface, the TREMEC Tool Box includes gear ratio calculators to make light work of the equation above and a handy Driveline Angle Finder to help rid your vehicle of pesky driveline vibrations!
Oh, and did we mention that it’s free?
No ads, no nonsense; just a simple app we developed to help you achieve better results. Get it today on the app store!

Designed for iOS and Android smartphones  This app will help you plan your project. 

Get The App >>>



iOS installation instructions:

1. Open the app labeled “App Store.” Icon:
2. Tap the magnifying glass icon at the bottom of the screen.
3. Type in “TREMEC” in the search box and tap Search.
4. Find the result marked TREMEC Driveline Angle Analyzer, tap the button marked INSTALL.
5. The app will download and install (it may take several minutes). You can then launch the app directly from the current screen, or find it on your home screen.



Get The App >>>



Android installation instructions:

1. Open the app labeled “Play Store.” Icon:
2. Tap the magnifying glass icon in the upper-right of the screen.
3. Type in “TREMEC” and tap the magnifying glass.
4. Tap the list item marked TREMEC Driveline Angle Analyzer under Apps, then tap the Install button at the top of the screen.
5. The app will download and install (it may take several minutes).   You can then launch the app directly from the current screen, or find it under MedWatcher in the Android app menu


The TREMEC Toolbox App for iOS and Android smartphones will help you simplify the drive-line setup, predict the effects of changing gear ratios and tire size, and calculate vehicle speed and RPM variables.
Newly updated to version 1.1, this Toolbox is great for planning your project, allowing you to see what kind of performance to expect from different combinations!

The TREMEC Toolbox contains:

Driveline Angle Finder:

Take the guesswork out of your chassis setup with this handy 3-step tool! By using your smartphone as a measuring device, the app will calculate each u-joint angle and provide an overall driveline operating angle with a Pass/Fail response.

This unique tool will help you avoid vibration problems associated with the incorrect driveshaft and u-joint working angles.

The three-step graphical interface provides measurements essential for proper driveline setup, along with tips and instructions that make it possible to check angles like a pro! 
Designed for RWD vehicles equipped with a one-piece driveshaft.

Click here for Driveline Angle Instructions

Vehicle Speed Calculator:

Interactively determine your vehicle’s speed in any gear and any engine RPM for the best performance.
You can alter the axle gear ratio, the transmission gear ratio and tire size to see the impact in real-time.
As an added bonus, the Vehicle Speed Calculator doubles as a Gear Ratio Calculator.

Click here for Vehicle Speed Calculator Instructions

RPM Calculator:

Determine what RPM your engine will run based on gear ratio, tire size, transmission, and MPH.
Try various combinations to come up with the best combination of gear ratio and tire size for your vehicle.

Click here for RPM Calculator Instructions

Tire Size Calculator:

Convert the P-Metric tire size (Example: 265/75R16) on the side of your tires to tire height in inches to simplify these drive-train calculators!

Click here for Tire Size Calculator Instructions



We are Enthusiasts Who Are Also, Engineers

This is why you do business with Modern Driveline.

We are not a large company with huge product development teams with bean counters and Wall Street investors looking over our shoulders.
We are automotive enthusiasts (car guys & gals) bent on getting our products right before they’re ever sold to the public.
We are also very determined to deliver great technical support after the sale.

As a Modern Driveline customer, you will never be a guinea pig on new products.
We find challenges before they get to you our engineering and our R&D team solve them before they are released for sale.
To ensure our products never become a headache for you.

We don’t just find the fault — we find the fix at the prototype stage & re-test it so that we release proven products before the production phase.

If you ever encounter a problem with any of our products, we invite your contact so we may solve it before it ever becomes a frustration for you.
If there is a problem after the sale, we are here to provide
lifetime technical support for any Modern Driveline product you buy.