Join Date: Sep 1999
Location: Vancouver, WA, near Portland, OR
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Re: TH350 or Th400 ??? in my CJ-7
I don't honestly think there's a tranny shop around that say a TH-350 is tougher than a TH-400. That's why you don't find TH-350's behind big block motors. A TH-350 behind a small block motor that's not punched to the limit is a good choice. A TH-400 is better for beef and longevity.