Tomas Lui Studios high performance, adjustable external pushrod kit for moderate servo throws. This pushrod can be used internally or externally depending on your needs.
The kit can be assembled as a single pushrod or both clevis' can be used on the servos.
Here is a link to Tomas Liu's E-Clip tool. Makes installation of the e-clips much easier.
The adventurous / imaginative builder could also use these parts wherever they feel the need.
Clevis Size: 4*4*27mm