Today were working on the 1970 C-10 Shop Truck. I have recently destroyed the 4 speed that was in the truck and cannot find internal parts due to the rarity of the Saginaw that was in it. So, I decided to swap a 4L80E instead. This is a semi cheap way of doing it and still have all the proper functions still working such as Lock up and speedometer. See how its done!
Links for Parts I mentioned below, if I did not mention something you want please comment and I will reply the link.
Adapter U joint Spicer # 5-460X or Precision # 348
https://www.oreillyauto.com/detail/c/spicer/spicer-u-joint/spi0/5460x?q=spa-5-460x&pos=0
Trans Fittings for -6AN
https://www.ebay.com/itm/124476078060?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D240678%26meid%3D23e3c1cd66ed404c83c876d07cea70fc%26pid%3D101195%26rk%3D5%26rkt%3D12%26sd%3D403027719011%26itm%3D124476078060%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv9PairwiseWebMskuAspectsV202110NoVariantSeedKnnRecallV1WithNode2Vec%26brand%3DUnbranded&_trksid=p2047675.c101195.m1851&amdata=cksum%3A12447607806023e3c1cd66ed404c83c876d07cea70fc%7Cenc%3AAQAHAAABMFVvFeUTQhL4KP79koL%252B4Ydgokeb2CQrAyC%252BOwbdpQetV2qAC7C3Vu0XLY04JD2l71qihjhRi6NHnF8%252BhgXS2aYrSe2gbn68aOiuHVBnxF63AVSP767kPD8CkKevaboGSapglrFqDbcYVpe6gMQFsyetV26CFKFWZxnPTHLeZtUjMl53amtwtUaqNcwsZ%252Bh4CHempyCLKb%252BI3V2I%252BuS3g%252FxOfrj6K0PeoWKAm8jzZI%252BzHAm9qA96XQdWmvtzWY8r13x9IMJECN2zin8GgsYEUoE6PNSf0E5fxlJoCrcfCb4cp5eKfw%252F2ShhD%252B1WDFJlaNPQc4oWJPR2zGWfXyMifmKs0L7sGuws5fBy7o6HP3AoKzwtjZA70FlZZE77LEBkzHukO8sMRVA8ztWVARwnwlGc%253D%7Campid%3APL_CLK%7Cclp%3A2047675