Thanks mate, i think your right, will have to measure thickness of the brace, but from what i can remember its about 5mm ish.

I would guess the top struts would be about 3-5mm thick, plus a small washer, say total 10mm for that lot. Then probably another 10mm for the bolt.

I agree, i think a 1" thread might be to long. Don’t suppose you know what the distance apart is from inside top of strut to top of suspension?

Cheers