Dronning,
The damage to your hood is identical to what happended to my new GT2554 after 11 hours of operation.
I disagree with CCinCT that "Your problem is unique, as far as I can tell. It's certainly not a design failure"
In my opinion the whole hood is getting too hot causing the anchor points to crack and fail under operation. Upon closer inspection of the damaged hood, I even noticed the screw hole holding the wires for the headlights had also cracked.
I think the problem is related to the new redesigned hood and heat shield. If you search for "2550 melting hood" folks are discussing other hood failures as well.
I installed the new hood and drove the tractor for about 10 minutes without load. The hood was hot as ****. After it cooled, I removed the top vent cover and the front grill and headlight assembly. I'm going to run the tractor this was for a while and see if it runs cooler.
I'm really disappointed with the new hood design and I expect it to break again.
Don't blame Momma! What you you folks think?
Dave in DurhamNC