"Best" fridge slide for Dometic CF50/CFX50 fridge?

I actually just picked up a Dometic slide for my CF-50 and it’s pretty damn wide, but built like a tank. Think I’m gonna bust out the grinder with a cutting wheel and narrow it to fit the fridge. Then weld it back together.
Is it the new Dometic slide or the old version?
Wondering if the new ones are available yet.
 

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