Instructions and Technical Support
Technical support is provided to original purchasers of S1 Sequential products. To help us resolve your enquiry quickly, use the contact form with your order number, a description of the issue, and photographs of the gearbox and shifter with anything you suspect highlighted. Support is limited to products sold by S1 Sequential.
Before contacting us
- Check the instructions. Most issues are resolved by re-checking the installation steps for your kit below.
- Gear engagement. The gearbox internals may need to be rotated slightly to allow a gear to engage. This is normal with any shifter; a sequential shifter simply makes partial engagement noticeable where an H-pattern would not.
- Clutch drag. Almost all shifting problems, including grinding into reverse or the vehicle creeping as reverse is engaged, are caused by a clutch that is not fully disengaging, often worsening as the vehicle warms up. Check clutch adjustment and hydraulics first.
Installation instructions
| Product | Document |
|---|---|
| Tremec TKX | TKX installation manual (PDF) |
| Tremec T56 GM | T56 GM installation manual (PDF) |
| Tremec T56 / Tr-6060 – Ford Falcon and Dodge Viper | Ford / Viper installation manual (PDF) |
| Tremec Tr-6060 remote-mount | Remote-mount installation manual (PDF) |
| Tremec Magnum 6-bolt | Magnum installation manual (PDF) |
| Tremec Magnum F | Magnum F fitting instructions · Converting a GM T56 kit to Magnum F |
| Tremec Magnum XL | Magnum XL installation manual (PDF) |
| Nissan CD009 / JK – short style | CD / JK short-style installation manual, rev. 2 (PDF) |
| Nissan CD009 / JK – long style | Long-style installation video (also follow step 5 of the short-style manual) |
| Toyota R154 | R154 installation manual (PDF) |
| Ford Toploader, GM Muncie, G-Force T-101 (4-speed) | 4-speed installation manual (PDF) |
| H-Track H-pattern shifter | H-Track fitting instructions (PDF) |
| Toyota 86 / GR86 / Subaru BRZ H-pattern shifter | 86 / BRZ installation manual (PDF) |
| Gear indicator and position sensor | Gear indicator fitment and wiring (PDF) · Online version |
Dimensioned drawings
Key mounting dimensions for every shifter are also collected on the Shifter and Gearbox Dimensions page.
| Product | Drawing |
|---|---|
| Tremec T56 GM | GM T56 shifter drawing |
| Tremec T56 / Tr-6060 – Ford Falcon | Ford T56 / Tr-6060 drawing |
| Tremec T56 / Tr-6060 – Dodge Viper | Viper T56 / Tr-6060 drawing |
| Tremec Tr-6060 remote-mount | Conversion unit · Low street-style lever · High lever |
| Tremec Magnum 6-bolt | Magnum 6-bolt drawing |
| Tremec Magnum XL | Magnum XL drawing |
| H-Track H-pattern shifter | H-Track drawing |
| Direct High Lever | Direct High Lever drawing |
| Offset / adaptable lever | Adaptable lever drawing |
| High-mount sequential lever | High-mount lever drawing |
| Gear indicator | Gear indicator drawing |
Adapting 4-speed shifters to other gearboxes
Notes on fitting the Toploader, Muncie and T-101 shifters to other 4-speed gearboxes are on the 4-speed shifter modification page. These are suggestions only; S1 Sequential does not provide engineering support for custom adaptations.