Here ya go Kyle, this is what ya need, and you won't find faster shipping
https://www.ssl-stormerhobbies.com/cgi-bin/seekpart.pl?src=ns&pn=CCMCCBEC
It will need to be programmed, not sure if Crash has a link cable or not. I've got one, but I live a long ways away.:redneck:
As for an ESC, I own two Castle Mamba Max's, and personal opinion is to go with something other than Castle for a crawler. Their drag brake is pathetic. Look at a Tekin FXR if you're buying new.
Does the ESC you're currently using have a reverse delay or double pump?
The only ESC that will give enough juice to power the servos is the Novak Crawler Rooster or Goat stuff. The Goat is great, but probably quite a ways out of your (and my) budget. Only the high rollers (Like Team CrashFab) run those
. The Rooster Crawler is a good ESC, some say the drag brake is too much, and it's not adjustable. It also will only provide the advertised 5 amps to the servos on 6 cell, or a 2S LiPo. Increase the supply voltage, your amperage to the receiver drops (It's complicated, but that's how it works). If I was buying an ESC, I'd go with the Tekin FXR, and a stand-alone BEC.
Not as inexpensive as I thought though
https://www.ssl-stormerhobbies.com/cgi-bin/seekpart.pl?src=ns&pn=TEKTT1091
Start with the BEC, and have Mike help you with the wiring. Should be a noticable improvement.
T.