Why the RRP spur? The stock one is free and seems tough as nails so far. Your diff setup should handle the power nicely. It's freezing here too, but that has never stopped me before

I finally managed to break my tricked-out Rustler the other night...-40 degrees and a full speed impact with a car trailer and all I broke was a camber link
As you can tell I wasn't burdened with an over-abundance of common sense, I love to run my RCs and I'm not letting mother nature tell me no