Lugnutz,
I have an 86 Astro t5 that has the ford bolt pattern,The # 's are 1352-164. I also grabbed the bellhousing when I got the trans.,It is off of a 4.3 v6. The gears are 3.50, 2.14, 1.39, 1.00, and 0.73 for the overdrive, it has the electric speedometer connection.
Just to alert you that the astro vans did come with the ford pattern in addition to the gm pattern transmissions.
Who do you get your build kits from?
Tommy