TKO-600 pilot length

[67ragtp]

If any of you guys have a TKO-600, could you possibly give me the length of the pilot at the end of the main drive gear, must be close to an inch? Doing some dimensional mock up and I found a dimension from the end of the pilot to the front mounting face/ bellhousing surface(6.6") would really like to know this dimension to where the pilot machined surface begins.

Thanks, appreciate the help- Rich