So back to this thread with an update. Car running just fine so far, trans was shifting 1-4 way to fast under light foot. Pulled speedo cable and found an orange stock plastic gear, my local expert mentioned it should be green due to my 373 gears. So off came the pan. I only had 1 spring on the gov but forgot if it was on light or heavy weight so I put it back on the light weight, hope thats right??