Thread: Locker Basics
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Old 07/20/07, 12:50 AM   #3
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The 3 and the 55 are 3.55:1 gear ratio. The L in betweeen them indicates that it is a limited slip unit rather than a locker. Presumably this would be the trac lock assuming they were still using them in 1993. Might be an Auburn though as well. Either way they are not known for standing up to much abuse.

If the previous setup worked well for the way it was/is being used then I think I would consider staying with a limited slip and just upgrade to the stronger true trac unit. If not since it is being used for towing as well I think I would suggest a selectable locker although that is a big jump in cost. (I would guess about $500 or so difference)
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