Yea, I just got one myself and completely ripped it apart!
Ive never seen plastic outdrives on any RC Ive owned. I couldnt believe it. I ordered a new pack of stock outdrives. The pair I came across was $25 each pair. I will give the stocks another chance as they where $4. If its a continued problem then I'll look into the steel ones. But not to much into on-road. This is my first one ever, so well see how I like it before I invest any serious cash into it. I had a Novak GTB and Vector X12 6.5t in it which Ive now removed. I am buying a used AE/Reedy 3300kv set up outta the RTR B4. Maybe the milder set up will be easier on the drivetrain. Has anyone had alot of issues with them stripping