This S7749P polymer servo mount adapter plus horn kit is for
installing a series II standard-size servo DS635/845/1155BLHV into a
Traxxas X-MAXX.
This will not work with series I servos, like DS505/630/930BLHV (or compatible like Savox 2290SG). Instead, order control horn PDRS19F-25T, and Traxxas' polymer mount adapter, #7749.
- Heads up . . . our alloy series II installation kit is a smarter buy.
The alloy-kit is both stronger 'and' significantly more rigid, 'but' it's only for series II super duty servos. It won't work with series I servos, either, capice?
Finally, if you don't know it exists, investigate our DS1885BLWR midi-size.