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My truck has the 3.73 non limited slip. On right turns it spins only the right tire. In a straight line when dry its only spins the right. When its wet out it will spin them both going in a straight line and when its wet and a make a left it definately spins them both and gets sideways (thats fun).
It looks like your missing the first part of the code. The 88 is the 8.8 rear size. The 10 is probably the end of 4.10, but without seeing the 4 you can't tell if there's a L between the 4 and the 10, L = posi.