These machines are held together between the rear engine section and the front transmission section by a steel frame the bolts into the transmission casting. My casting has a few of the mounting bolt holes broken off which caused the machine to flex and take out the clutch and related shafts between engine and transmission. If someone was a decent welder they could weld up reinforcements off other areas of the frame, but the correct factory fix is a new high/low speed transmission casting, the two shafts, new friction plate, release bearing, etc. The 72” deck is perfect and has a new drive shaft. I’d let it all go for $1500 usd or $2100 cad at this point.