Hi Victor
As Alexes pictures show, the Holmes unit was bolted to the chassis with flanches and U bolts.
I have updated the Diamond T part just now because I thought I just point jou to it, but when I checked it was not there yet.
So, now it is and when you scrol down there are some HOLMES drawings that may explain it all - I hope-
Go to
http://www.wheelsofvictory.com/canadian%20index6.html
go to Diamond T and scroll down.
Hope it helps.
Regards
Ron Perry
ron@perry.nl