1946 d dime that's cracked do you guys think it would be worth sending in
Welcome to the forum!
It appears you have a cracked planchet, the blank was cracked before the coin was struck.
These need to be fairly large cracks to command a premium and yours is good sized.
The problem is yours is circulated and most collectors want these in MS mint state.
If the coin was mine I would put it in a 2x2 flip or a plastic air-tite type holder.
It doesn't appear it would be worth the cost of grading.
Agree with the above.
Unless a coin is worth at least $150.00, it is not worth grading and there is no way yours is worth
near that. Put in a flip and add to your collection.