Small Engine Troubleshooting Problems? Ask a Mechanic Now.
The Big Dog is the lower priced mower , that Excel has introduced to give the BAd Boy mowers some competition in the lower price ranges. The Hustler is the higher end product, from Excel, the Big Dog is there supposedly lower priced models to sell through the big box stores and not through the Hustler dealers! It's all marketing to gain more market share!
Same mowers with different tags, made in the same plant! By having two like mowers, with same parts, they sell more, giving them more market share!
What did you wind up with?