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OK. This is really simple. "Posi" is an annoying term that GM used a long time ago, it's the same thing as a limited slip. "Anti spin" and "Trac lok" are also annoying names for limited slips.
OK. This is really simple. "Posi" is an annoying term that GM used a long time ago, it's the same thing as a limited slip. "Anti spin" and "Trac lok" are also annoying names for limited slips.
It's so annoying, so many people wonder if they have a posi or LSD. It's the same thing, like you said, something that GM used to call their LS. You don't have a posi... none of us do. It's either a LS, open, or locked if you install a locker. Not posi.