B4.1 Steering Blocks

[TomS 96]

Hello,

Can anyone help me please; I am looking of the steering blocks that come in the B4.1 FT kit. Looking at the manual it gives the part number 9581, but when I search it, it comes back with the original B4 blocks even tho the picture in the manual is of the newer blocks.

The originals are thinner and are not reinforced as the newer ones are. Does anyone know if these are available and if so were from?

Thanks Tom