I am replacing the drive flanges on my D60 with a set of spicer locking hubs I bought (used but nice). When I went to install them I realized I need the large internal lockring to hold the whole thing in. I believe the GM number for this is 14070396, item 76, not found on GMPARTSDIRECT. Where can I get a pair of these? Is this the type of thing where only OEM parts will work or can I get any suitable snapring that fits and use it? I'd 'preciate any help.