Is there a replacement gear set I can get for the 645MG other tan the gearset labeled "645MG gearset? Compatibility between models anywhere?

Is there a replacement gear set I can get for the 645MG other tan the gearset labeled "645MG gearset? Compatibility between models anywhere?

I only need the one large metal gear,but don't want to be forced to buy the $15 645MG gear set. Heck,the whole servo only cost me $35 new.

The 625 and the 645 gear sets are interchangeable between those two servos.The 625 gear set will give you more speed with less torque and the 645 will give more torque with less speed.

The individual gears are not available separately from the set other than the first gear.