Box Scraper Box Blade Size for Kubota B7500

[Old Blevins]

I've done some searching in the forum, but haven't found anything very conclusive. I'd like to get a 5' box blade to cover the wheeltracks of my B7500, but want to be sure that's not more box blade than it can reasonably handle. The B7500 has 21 HP, and can lift 615 lbs at the lift points (480 24" behind them). Our soil is mostly dirt with a good supply of small/medium rocks.

Any advice on whether the 5' is okay or too big for this tractor? I'm thinking since it may be marginal, I should probably focus on 3 ripper BBs, but would prefer 4 rippers if it could manage it.

 

[devildog1]

My advice would be go with the 5' with four ripper teeth, but make sure that each tooth can be raise independent of each other. Rippers that are set to deep can slow or stop a smaller horse power tractor.
DevilDog