On page 49 is shown a yellow spacer for the front end forward upper A-arm mounts, I cantt find any mention of a thickness of it tho?
Does anyone know?

The front upright in fig 4.25 slopes back from the bottom. The spacer just holds the frame horizontal away from the sloping upright, so as long as it's thick enough to do that it's not critical. See the top left bracket on the bottom diagram in fig 4.22 on page 47, I think that shows what I mean. This is how I read it.

Hope this helps

John

Yes I just realized that now when I started setting up the mounts and took a closer look at the dimensions and where they were originated from.
A small stack of washers worked fine.

[Edited on 4/6/19 by falcor75]