Hey all, my transmission went on my 1990 k1500 (5.7). So instead of getting another auto, gonna go for a manual. I've been doing as much research as I could but cannot find anything concrete about which 5 speed transmission can fit my 350tbi. I currently may have the option to purchase pretty much the whole swap, but it's a nv3500 from a 97. And I've heard both that a later model nv3500 can fit the earlier 350 TBI's, and I've heard that later nv3500's won't fit and I need to find a '95 down nv3500 to fit my '90. I'm aware I need a 4x4 transmission and how I'm gonna go about doing the rest of the swap. But I just cant get a 100% on what transmission I could go with. I would hate to end up buying this whole setup I have available to me right now, only to find out the transmission doesn't fit, and would hate to pass up on it just to find out that I could've went with it. Would appreciate the help, thanks.