[snj8198]

Well the difference between the two versions was the early year adapter was the 8 bolt "racetrack" shape and used the 10 spline female coupler. The later combo had a round pattern 6 bolt pattern and used a 32 spline female coupler. The input shaft on the 32 spline was larger iirc as the case opening was larger making room for the larger input bearing and again the larger diameter shaft. So just as long as you have the right bolt pattern adapter to case and the proper splined coupler you should be in good shape. Snaps some pics if you get a chance. Again I can snoop around as I bet I can find what you need if you indeed need different parts. I know I have an 8 bolt adapter but not sure about any more couplers.