My 94 80 series was running great and then I started having starting trouble. Battery is a new optima yellow top and the battery clamps are new heavy duty terminals so the battery shouldn't be the problem. I also have a new fusible link installed recently. I removed the old starter and got it tested and it was not spinning at all. Bought a new starter and it worked perfect for 6 consecutive starts and then it started "clicking" again and failed to start with the NEW starter. The bell housing near the starter had what looked like booger weld marks on it so I think it's grounding out to the bell housing, is this even possible? Looking to get my LC back to being reliable again. 243k miles on the truck with only 33k miles on a new motor. No automatic starter and it's a base model with no alarm so let me know if I need to disclose any other details for help in diagnosing my problem. Please help!!!