I have to agree with Fast355. Ive been in the transmission industry for 20 years, and while those trucks came with the 700R4, it's only because they didn't have another option for an overdrive trans, at least not for another year or so. With that said, another caveat of the 700r4 is T.V. cable adjustment. With the aftermarket intake, your factory throttle cable bracket may not mount in the proper location for correct cable geometry, leading to a burnt up trans or uncomfortable shifts, or any of a myriad of other shifting/pressure concerns. The TH400 is a much more reliable transmission, due in part to its simplistic design compared to the 700r4, only needing a vacuum signal from the engine to determine shift pressure.
Buddrow
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