King Hauler vs Grand Hauler question

[wayles]

Can anyone confirm for me that the sleeper on the king hauler is the same as the one on the grand hauler? They appear the same in pictures, but I need to know for sure.

I am planning a custom build with a stretched sleeper. I have a king hauler bare body and would like to use the grand hauler for the build. I plan on marrying the two sleepers together to make one and it sure would make life simple if they were the same.

Thanks in advance.