T-case id G505 or G502 ??

[84cj7lt1]

Can someone Please tell me what case I have? I think I have a G505 or G502 from a power wagon? The case is in really good shape other then the surface rust. Inputs and outputs turn freely and it shift well. I dont plan on using it I just want to know what I have. TIA

 

[NDT]

Either. The 1 speed case was used on both.

 

[84cj7lt1]

thanks