Key Features
- Converts 16mm internal-thread shift knobs to fit 12mm x 1.25 shift levers
- Includes jam nut to lock the adapter in place and prevent rotation
- Direct fit for Ford Focus and 2005-newer Mustang shift levers
- Allows you to retain your preferred aftermarket shift knob when upgrading shifters or transmissions
- Simple thread-on installation with no modifications required
Description
Upgrading to a TREMEC transmission or aftermarket shifter often means dealing with a thread mismatch between your favorite shift knob and the new shift lever. This thread reducing insert solves that problem by adapting any 16mm internal-thread shift knob to fit a 12mm x 1.25 metric shift lever—no new knob purchase required.
The adapter threads directly onto the 12mm x 1.25 shift lever while providing standard 16mm external threads for your existing knob. The included jam nut cinches against the base of the adapter to lock everything in position, eliminating rotation or loosening during aggressive shifting. This is especially important in performance applications where repeated hard shifts can back off an unsecured adapter over time.
Direct fitment for Ford Focus and 2005-newer Mustang applications, which use the 12mm x 1.25 thread pitch on their factory and many aftermarket shift levers. Whether you're swapping in a new short-throw shifter, installing a TREMEC TKX or Magnum, or simply want to run a different knob on your stock lever, this insert bridges the gap between mismatched thread sizes.
Kit Includes
- Thread reducing insert (16mm external to 12mm x 1.25 internal)
- Jam nut