Popped open my rear end this week, saw some writing on the ring gear. can anyone help ID what brand they are? I mean, they are fine, I am just curious. Tried to google it, and can't find anything

"GF97-456L"

I do have 4.56 gears, with a limited slip, in a 9.75" rear end

 

It's probably made by G2 axle.

http://www.g2axle.com/

 

why do you think it is G2? their part number for a 4.56 gear is "2-2012-456"

I did find a thread on here that has the correct numbers, but uses slashes and has an extra P in it --- so not sure that is it either

https://www.f150online.com/forums/ot...ml#post3503838