Speedometer Angled pipe

[911-ST]

Hi,

I try to solve an oil leaking problem on my 901 gear box at the level of the speedometer Angled pipe. I watched this video to help me out.
https://youtu.be/I291iN4QKAk
It might not be the cleanest way to do it but it gave me a good idea of what to expect.

I got the peace out but I cannot take it a part I noticed that a predecessor "glued" with a red "past" the VDO Angled pipe and the Guide bush.

Before solving the dismantling problem I notice that I have the "Bronze" part of the Angled pipe that have a play of 1mm which allow me to give a angle to the all assembly. Is that normal ?

Also I want to ask you what you think about this https://900designs-container.zoeysite.com/speedometer-drive-gear-guide-bushing-kit-1-1 "designed to avoid leak"