Your  Sport-Prototype & GT Gearboxe

Official Product Ligier JS2R et JSP4

Technical Specifications

6 speed dog ring gearbox, with sequential gearing 

Maxi engine torque : 500 N.m (365 lbs/ft)

20 mm teeth width (1° to 3°) and 17mm (4° to 6°) - 89 mm shaft centers 

Gear ratios, wide range except 1rst 12x35

Step-up conical drive (input) : transverse cluster layout

Drop gear quick access (overall reduction)

AS7G06 aluminium casings, two possible oil tanks : 6L and 10 L 

Oil pump and internal lubrication system + steel filter 

Self-lockin differential : 3 + 3 discs, several ramp angles

Clutch shaft : 1" x 23 splines or 1" x 26 splines

Gearbox selection + pneumatical jack supplied 

"Contactless" barrel position sensor

Endurance 650 N.m Option 

Special steels

3MO® CeraFinish : superfinishing option

TFJ self-locking differential : high torque level

Specific input shaft

NEW 2023: internal torsion bar

Options and Accessories 

Bell housing

Release clutch 

Output flange

Extra informations: : 

the NTV gearbox is designed to fit with a centrifugation clutch : no slave cylinder (even if possible to install : ask)

The driveshafts must be made bespoke. We recommend Ø28mm maximum.

Depending on your application and the technical features of your vehicle, an oil cooler is recommended. Usually we recommend a 13-row radiator, 210x98x50mm with AN6 inlet/outlet connections.

Mandatory to use oil type 85W140.