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Do I need to upgrade the rear diff in my 64?

191 views 5 replies 4 participants last post by  Wanda's B**ch  
#1 ·
I have a 64 with an inline 6 / tb350 original installed. I am currently in the process of swapping to a 383 stroker / 700r4. Will the rear end handle the additional HP (I don't plan on burning rubber every time I drive but will occasionally). If I need to upgrade what would a good option be. The current rear end is a 6 lug. I'm no expert so patience is appreciated. TIA