So here's the deal on the Full Float carrier. It's a split carrier with spider gears inside it. Now if you have the Gov Bomb carrier now, then you're jacked and will have to swap out the whole carrier with an open diff.
With the open diff on a Full Floater 14b, as said, being a split carrier, you can open it up and replace it with a Detroit Locker which one of the bigger famous name brands. My point being, since it's a split carrier that you open up and replace the spiders, in this case, even the Detroit Locker works as a "lunchbox locker". I don't know that there is a bad lunchbox locker for a 14b full float axle since they are all just about the same whehter you get a Detroit Locker, a Lock Right, a Spartan locker or some Grizzly locker whatever it is. But there is several of them now days. I personally would just Google Locker for 14 bolt Full Float and then choose one based on price and reviews. Detroit Locker is good, and I think you'll pay more just for the name, but as said, due the FF carrier design, they are all about the same. I know for a fact Lock Right is made by Richmond Gear or their parent company and we always used Richmond Gear back in the race days cuz it was always good stuff at budger prices and street racing wasn't cheap. PowerTrax Lock Right is the name. Heres is an example of the Yukon Grizzly at Amazon for $415.
https://www.amazon.com/dp/B0078UBMZM/ Link Included. PowerTrax LockRight at Rocky Road Outfitters for $411. Now make sure those are the correct ones for the correct axles and all, these are just examples, I didn't do any research.
https://rocky-road.com/shop/gm-14-bolt-lockright-locker-1955/ Link Inluded.