First off, there great diffs. Especially for the price. Are you talking about the standards or the Pro's? The Pros are good for a truggy but would require VERY tall gearing. I recommend the standard with the FLM Hybrid bulkheads.
do you know the ratio for both , i saw that there was two different item #s for the diffs mike is selling with no ratio, i'm tired of stripping rrp gears, are they sealed for diff fluid,also i mostly do bashing and run big tires so the lower ratio gears would be best , but could i gear it for speed as well
The Pro's would be to low either way. The standard buggy diffs are the way to go. The only reason to get the Pros is if your running a center diff. BTW, what setup are you running?