The Traxxas 2075 high torque, waterproof servo is now installed in my Granite and ive had some time to test it out. Upon inspecting the 2075 it is exactly the same dimensions as the stock Arrma AS1 servo that comes in the Granite.
There have been many people that have complained on what a task it is to get to the steering servo in the Granite. They were RIGHT! Dont get me wrong, there is nothing difficult or baffling about the procedure, its just time consuming removing the many screws. Luckily, most of the screws are the same, so you wont run into an issue with mixing them up.
With the new servo installed, i did run into some minor clearance and fitment issues inside the servo box. Although im not exactly sure why i ran into this issue since the Traxxas servo was the same size as the Arrma AS1, but it may of been because the Traxxas servo spline was a tad bit longer than the spline of the AS1. As a result, the servo arm sticks out a little further. And with such a small servo compartment, it caused the servo arm to rub (only slightly) up against the top of the servo box. This was actually a very easy fix and required a very small amount of the servo box to be removed. Also, the threaded end of the ball stud that mounts to the servo arm need to be trimmed to allow for clearance within the servo box.
Before Trimming Ball Stud:
After Trimming Ball Stud:
Before buttoning everything up, i connected the servo to the receiver and powered on the controller and ESC. Without the servo arm installed, i set the steering trim to the default neutral setting. After that was set, i installed the servo arm per Arrma's instructions (page 21 of the maintenance and tuning manual):
BTW, if your new to working on this vehicle, i suggest downloading the Granite maintenance and tuning guide as it explains in detail how to remove and reinstall a servo.
After getting the Granite back together, i brought it outside for a test run. Right away i noticed a great improvement in steering response with the 2075 servo installed. Turns were much sharper and the steering more sensitive. I had run 2 LIPO packs in the Granite and was impressed and satisfied with the performance of the servo upgrade.
Overall, this is definitely one of the best upgrades so far to this truck. For about $20 and a little time, upgrading the steering servo will provide much better steering and performance for the Arrma Granite. In addition, you will have a servo that is waterproof, not splash proof as Arrma refers to the AS1 servo.
Another step forward on improving the shortcomings of the Granite.