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  1. M

    NP231/early Bronco D20 doubler

    Sorry, I was having a brain malfunction.You basically put an AA kit on the d20 so it would have the 231 input than bolted it up to the 231 doubler kit.I was thinking it was the doubler kit without the included shaft and just the shaft from AA to connect the doubler and the d20 somehow. It adds...
  2. M

    NP231/early Bronco D20 doubler

    Thanks alot for the info. The AA shaft is the one I thought but I figured it would be a 23 male spline to a 6 10 spline male for the d20. I might be confused but the AA is 23 spline female to 6 spline male, do you remember anything else about how you coupled it together? I really want this setup...
  3. M

    NP231/early Bronco D20 doubler

    I had called AA but they didn't know what type of shaft i could use for this setup.Would you happen to have a part# for it? I don't like asking so many questions but did you make a buildup thread on this doubler by any chance?
  4. M

    NP231/early Bronco D20 doubler

    Was that made with a kit or did you fab it yourself ? I know about the box4rocks kit but not for a d20 behind it. Interested on how you put this together. Is there some way I could get in touch with you? I have a late d20 j shift t case and a 231 hangin' around in n "87 xj. It looks like a real...
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