These adapter and extension conversion screws are perfect if you have bought a shift knob or want to get a shift knob for your Japanese car with the wrong size direct thread and also want to add a bit of length to your gear stick.

This listing is for one caliber conversion and extension screw to fit a direct thread of 10x1.25 (lever side) and converts the thread to 12x1.75 (knob side). This means that it will fit on gear sticks with a pitch thread originally of 10x1.25 (please do check your specific application) which will then allow you to fit a shift knob that is of 12x1.25 thread. 

We have other thread adapter sizes under separate listings.  

Material: Stainless Steel

Overall height: 50mm

Main Body: 35mm

Screw section length: 15mm

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JDM Shift Gear Knob Extension and Adapter 10x1.25 to 12x1.75

  • Product Code: ST-144
  • Availability: In Stock
  • £18.99


Tags: Gear Knob Adapter Shift Knob Adapter Gear Knob Extension Shift Knob Extension Adapter Screw Caliber Conversion Screw Gear Stick Thread Adapter Gear Stick Conversion Thread