[neweuser]

there are two kinds. hybrid bulks, and combo bulks. combo bulks are designed for stock gears, hybrids are for 1/8 buggy gears....if you go to the store you'll see both with discriptions. the hybrids state "uses 1/8 buggy gears". If you're running stocks gears, the combos are the same as the hybrids but use stock gears instead of 1/8 buggy gears. You wanted the combos...