MP 1,1-5,1 Mac Pro trays - part/model number?

[mvalpreda]

I have a bunch of trays from some old Mac Pros (believe they said MAC PRO 2 or MAC PRO 3 on the labels) that are 2 different sizes/lengths and I'm not sure what the part numbers are. Hoping someone can help me out.

The shorter one has 4 screws and is 5 3/8" or 135mm
The longer one has 4 screws and is 6" or 155mm

Appreciate any insight someone can give me.

 

[KeesMacPro]

I suppose you refer to the drive sleds.
The 155mm are from a MP4,1/5,1 (2009/2010/2012)
The 135mm are from a MP 1,1/2,1/3,1 (2006/2007/2008).

 

[mvalpreda]

That is correct - drive trays.
Looks like the 155mm are 922-8899 and the 135mm are 805-7032
Thanks for getting me pointed in the right direction!