I know this question has been asked before---with the early t-5 with 4.03 first gear, can other gears like the 3.76 be interchanged? Can you custom, so to speak the gears sets from one to another--these are the NWC-GM S-10 units. I have one that has the electric speedo and I have a chance to get one with the mechanical, but they have the deep first gear, so are they interchangeable? Thanks.......
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