R730 INTERNAL STORAGE ENCLOSURE 4 BAY KIT does not fit

My 2 Dell CPU Heatsink Low Profile arrived today.
After replacing the heatsinks I wanted to replace the
Dell - 4FHR4 - R730 INTERNAL STORAGE ENCLOSURE 4 BAY KIT
into my DELL r730

But it does not fit.
I have watched the installation video from Dell here the 4FHR4 fits into the 730xd without any problems

for my r730 <Private data removed from public view. DELL-Admin>
1. a little too wide
2. if i push it in a bit, it hooks into the lugs but i can't get the lid closed. Because the kit protrudes 5mm.

Here are the attached pictures.
https://share.icloud.com/photos/0feC_UoYE1r9kxjYTN_oxgSww

The kit from you should be compatible for r730 and r730xd, right?

sorry for my bad english