Get a Rhino and call your steering servo issues done. Im finially getting one for my Proto Racer Baja. will fix the one 5745 i have in it now. send it and the dead one i have here for repair, sell both those when returned and the 3rd on i have here that i don't want any more, and get another Rhino for the Hooters baja. im done mucking around with steering servos, doing it the way i knew i should have from the start.
Sorry you said T/B servo. I would grab a JR Z9000T or JR Z9100T. you can get them for around 115.00 (same price as the Hitec) better servo, better power, better warrenty.