quick question
 

will the FastLane Machine 6061 cnc diff cup with Modified Traxxas gear work with the flm hybrid bulkheads. if so will they hold up to a fast brushless system, if not can you tell me what diff set up to get. People have recommended spider ue diffs and buggy diffs but i dont want to spend that much on diffs.

Its either buggy diffs with FLM hybrids, or the stock diffs (or FLM, or Nova, or RRP, or etc) with FLM combo bulks.

Honestly, a stock Revo diff is going to hold up to most brushless systems. If you happen to blow one, then upgrading to a aluminum cup, case, and RR gears will make it darn near bullet proof.