Hi Max,
I made a a sheetmetal disc with the holes on it. On the Victa PT base looking from the front the 2 left PT holes are good , just need to drill the 2 right hand holes. When I did the Ariens I had to find the centerline through the base and then line that up with the centerline on the disc and then drill the 4 holes. Same issue I had with the mower I split down the middle but I knew none of the existing holes would line up. Also fitting the Honda on the Victa base meant I had to use the Briggs spacers but I couldn't use the ring as none of the holes lined up
