I need to know about how much a TH350 HD automatic transmission with a short tail shaft and hopefully overdrive. I don't know if they have any different bolt patterns, but it needs to hook up to a 1979 Caprice 305, but it will go into a 1981 Chevy shortbed.
Do a search on www.jegs.com or www.summitracing.com to get an idea on pricing. Use the search terms '2004r transmission' & '700r4 transmission'.