Bought these for my sons TF 5 touring car.The originals aren`t very strong and he had broken a few of them.
When these turned up we were immediately impressed by the quality.WOW !! these are well made...They came with shims that allow you to mount the knuckle either higher or lower in the C hub.We mounted ours higher so as to lower the ride height.
The standard knuckles from kyosho are available in 4,7 or 10 degrees of castor.3 racing don`t state what angle these are but they look the same as the 4 degree ones our car came with.
Overall a great product.They look great and should be very hard to break !!!