I just went down to the very old and very small Chevy dealer down the road from me. I kind of hit the jackpot. He just lost his Chevy franchise, but hasn't made it public information yet. He let me look through his many, many stacks of OEM Chevy service manuals, manual supplements, etc. Ends up I took a huge stack of books dating from 1987 to 1992 for V, P, G, and C/K trucks. Paid $30 for the whole mess. Took several trips to carry it all out. Service manuals, wiring diagram books , component rebuild books, etc. So, it seems I've got a lot of reading to do, but the info I need must be in there somewhere.
Also, with a quick glance, I noticed that none of the 1991 GM manuals show any info on the 700R4. They only mention the 4L60 and 4L80. They show the 4L60 having the RPO code of MD8. That is the same RPO code they used previously for the 700R4, so maybe it IS a 4L60. I have no idea how to determine that, and maybe it doesn't matter anyway.
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Today's Featured Article - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
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