As I said, it'd work fine - spec is similar to the Ace. But if buying new the 351 is intended for truggy steering.
The Futaba brushless servos had some reliability issues when first launched, plus apart from JE spares I'm not sure who actually carries stock on the shelves of them. I know someone running a pair of 451 in a buggy with no issues, after lunching a number of Savox and Ace servos, with no issues.
As with anything new there will be teething troubles - hopefully now resolved
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