HB Racing Lightweight Differential Shaft (2)

after driving with these since my first post i will say these are a most they have lasted very good with no sign of wear since i got them so far. i race every sunday since may this year and really like these parts. i dont know if it makes a big differents but a lighter drive tran got to be good right. i do race 6 minutes quail and a 20 minute main. so that a longe time.