hey guys i just bought a detroit true trac and 4.88s for my truck from summit but i was wondering what the true trac needs for bearings because it says it needs over size bearings to put in my 8.5 10 bolt but i can not find anything about them.
Call randys ring and pinion. The true trac is made to fit either the 8.5 or 8.6 10 bolt. That said, you will need a bearing that has a larger ID in order to fit the larger bearing trunnion on the true trac.
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