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  1. '87 P30 4BT Trans Manual to Auto *Newbie needs help*

    Transmission, Adapter, Transfercase Discussion
    Howdy! Newly registered but have been following this forum for a couple years. It has saved my behind a time or two and its great to have such an awesome community to look to! I am sitting on a 1987 GMC P30 bread truck. Its in need of a conversion from the 3-speed manual to a durable automatic...
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