Then someone replaced the ground cable from the battery wrong. It should go from battery to under the battery tray, to the frame, then to the block. There should also be at least a grounding strap from the firewall at the heat shield to the head, and one from one of the starter bolts to the frame or battery. I ran 2 gauge battery cables on both + and - and used separate cables for each connection on the negative cable. I also ran a continuity check to ensure there were no signs of resistance building up between connections. Each spring I check the connections to make sure the connections are still good. The main problem with the early km-145 trannys is the end bearing plate wears on the main input shaft, causing the shaft to start moving around and tearing things up. My 1980 did that and a good friend of mine rebuilt it and corrected that issue when he rebuilt it. The later trannys and the starquest trannys have larger shafts and bearings, but can still fall victim to this wear issue. Another way to stiffen the tranny is to find a cast tranny pan from a starquest tsi intercooled model, 89 only. However, unless you are very lucky, finding one of those is near impossible and most likely cost more than the tuff pan.