31TH, 404, 413, 670, are all the same diff. (any 3-speed FWD Mopar trans.) The only difference is when the big axles are used starting in '87. I use the 24 bolt spacers with 7/16"-20 threads in the...
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31TH, 404, 413, 670, are all the same diff. (any 3-speed FWD Mopar trans.) The only difference is when the big axles are used starting in '87. I use the 24 bolt spacers with 7/16"-20 threads in the...