The 44 blade is standard for the X300 series.
The 48 blade for the X500 series.
The 54 blade for the X700 series.
They are sized for what size the tractor you have.
I wouldn't do it.
But another alternative is blade extensions kit.
There are some good ones on Ebay for all three blade sizes.
I bought one for my 48 blade from a seller in Ohio who custom makes them and good quality.
GL with it.
The 48 blade for the X500 series.
The 54 blade for the X700 series.
They are sized for what size the tractor you have.
I wouldn't do it.
But another alternative is blade extensions kit.
There are some good ones on Ebay for all three blade sizes.
I bought one for my 48 blade from a seller in Ohio who custom makes them and good quality.
GL with it.