Griffith 500 brake servo replacement

[Follie]

Any advice / help / be aware of when carrying out this job

Cheers

[Follie]

Welll as I have both conditions I was bearing away but my lad is adamant he will do it, so please send pointers/ advice ect

[Follie]

well that's cheered me up no end😂😂😂
Just to confirm there is no possible way without removing the whole pedal box?