JT5 Jaguar 5 Speed Detail

• Our current JT5 design is an acummulation of 15 years of design data and feedback from people.
• The JT5 is based on the Borg Warner (now Tremec) T5 5 speed platform.
• Can easily handle any power of any street Jaguar.
• More distributers sell the JT5 than any other conversion.
• The current version offered for sale for E-types and Mark II is the Model S.
• The XK 120, 150, and 150 versions still use a longer extension housing.
• JT5 5 speeds have many PUBLISHED overdrive ratios.
• See JT5's and other transmissions being built by us LIVE ON THE WEB!
• JT5 5 speeds come in competition models ( Model CR ) and are race proven worldwide.
• If you take the time to read the information presented on this website then you deserve a JT5.
• If you like our progressive and quality approach to engineering then a JT5 is for you.
• The JT5 has sparked several inferior copies which are priced higher and have no track record.

New cases arrive for production	JT5's are assembled from new parts

Model S JT5: This model features a mechanical speedometer drive designed specifically for the Jaguar platform. The internal drive and driven gears use the same ratio as the factory Jaguar boxes. This assures you that your speedometer will have the same exact calibration. Using the Model S in a V12 Jaguar or 2+2 platform will give the end user the option to pull the transmission out of the car without having to remove the engine.

Although we recommend using a new speedometer cable, your existing speedometer angle drive and cable will attach to the JT5. No other conversion correctly does this! Notice our drive points up and not down. This is a common cause of leaks.

Speedo driven gear inserted into JT5 Fitting

Fitting and gear installed in transmission

Just like the factory! Notice thickness of casting...

The new JT5 Model S features: 2.95 1st gear with .90 Overdrive 2.95 1st gear with .75 Overdrive 2.95 1st gear with .73 Overdrive 2.95 1st gear with .63 Overdrive 3.35 1st gear with .85 Overdrive 3.35 1st gear with .83 Overdrive 3.35 1st gear with .73 Overdrive 3.35 1st gear with .68 Overdrive

Enduro countergear above and standard T5 gear below.	Typical XK Style Model