I think the 87 used a 700-4r. I,ve put 2 of them in older trucks & they work excellant. You must get the trottle cable setup & adjustment right or it won,t work right & won,t last long. Also it,s best to hook up a converter lockup system. There is lot,s of info on the net about this because it is a popular swap. The 4L60 & 4L80 are more difficult because they are computer controlled.
