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Anyone have a good link to a book or guide to rebuilding the 203 thats in my 81 Silverado? Also, are there different splines for the th350 vs th400 trans equiped trucks???
Yes a th350 will have a 27 spline input and th400 will have a 32 spline input. Personally I wouldnt even mess with it, they go so cheap I would just buy a used one and swap it over. After watching bazillions of needle bearings flow out while building the doubler, no way there to cheap.