By the way. If you have four bolts on your side cover, It's a Muncie with un synced 1st gear. If you have seven bolts, it's a fully synchronized Saginaw. Someone will correct me if I am wrong, but, speaking trucks only, I believe Muncie's were used pretty exclusivly prior to 1966, and behind six cyl engs til 68. Saginaws only on eight cyl engs from 67 and behind all 6's and 8's after 1968. Hope this helps
