Technical

What Fluid Should I run in my transmission? And what is the T56 fluid capacity?

I recommend different fluids based on several factors. You can read my article on this subject and best decide what you want to run in your transmission

T56 Fluid Recommendations

Do I need to index my cast aluminum bellhousing?

Yes, it is very important for reliability. While initially I was hoping this would not be required, we found that the OEM engine blocks are not super consistent in machine tolerances. To keep your transmission covered under TREMEC's warranty we highly recommend doing the index process.

Do I Need to Index My Bellhousing

What is better, the close or wide ratio T56 Magnum?

That is really a question for you to decide, but I can tell you that I sell 99 close ratio tranmissions to every 1 wide. Read my article for why it is that much more popular.

Close vs Wide Ratio T56 Magnum

What is hydrualic release bearing air gap I hear about, and how do i set it up?

One of the most important parts of your install is setting the air gap. Setting it up improperly can lead clutch or hydraulic failures. Read more about this and avoid issues!

Clutch Hydraulics Tech

What is the final drive or rear gear ratio to match up to my T56 magnum?

The sweet-spot range final drive gearing for most T56 setups is from 3.7-4.30 usually. This depends a lot on your driving style, your horsepower, and your rear tire height. 

Choosing a rear gear to match the T56

Where can I find install directions for the transmission swap kit?

While I do not provide print-out directions, I have done a complete video series on an auto-to-manual swap on a MKIV Supra. This covers all install processes and is pretty universal when it comes to installing these transmissions in ANY car/chassis. 

Install on Already a Manual car

10 Part Video - Auto to Manual Swap

Which Transmission will best fit my chassis? Magnum, Magnum-F or Magnum XL?

If you are swapping into a car where I do not build a complete kit already, you can use one of our universal kits for the Chevy LS, Ford Coyote, Toyota 2JZ/1JZ, Honda K-series, Rotary 13B/20B, Toyota UZ V8, and Nissan VG30. Then use the options to select which trans will fit based on a measurement you will take from the back of the engine block to the center of your shifter hole in the tunnel. It's important to get the transmission correct, because its heavy and expensive to ship back if its not the best fit.

Universal Transmission Kits

Should I choose the wiring pigtail kit or the T56 wiring harness for my build?

The shortest and easiest answer is that if you have a capable stand-alone engine management system (Haltech, Motec, etc etc) and you have available inputs and outputs then you should just get the pigtails. You will need to use your ECU to convert the speed signal from the T56 pulses, to your stock speedometer pulses. And then use the speed input to unlock your reverse

If you are on a stock ECU or an ECU where you do not have any extra/available inputs/outputs then you should get the harness. The harness is nice, because its built in module will auto-unlock the reverse solenoid when it detects the transmission speed is less than 4 mph. It also provides provisions for the reverse lights and keeps all transmission related wiring in a clean and simple installation package.

T56 Wiring: Pigtail Kit vs Harness

Will my current driveshaft fit? How do I measure for a new driveshaft? And other driveshaft questions...

The T56 normally is a different overall length than whatever transmission you have in your car currently, so in most situations (other than a f-body camaro basically) you will likely need a new driveshaft or will need to modify your driveshaft.

For all driveshaft related tech questions visit this page where I will try to answer all those questions

Driveshaft Tech