I guess many of you have also encountered the same thing with installing a new servo- having to trim, etc... Spaz456 had indicated to me, that he trimmed the servo tabs to get it to fit down into the tub. We both have the KO Propo PDS-2143. I would like it a whole better if it just dropped in like the old one. I know the Hitec HS-5925MG should drop right in. I might exchange it.
As far as the drive shaft, I have the blue IRS.
Here's a good question. Is there a way for the steering turnbuckle 'not' to rub the drive shaft when it gets to near full Right turn?