[Tom Cimino]

The space without splines in the yoke is for a spline seal. It is a rubber seal that slips over the tailshaft and rides inside the yoke. The only reference I have for that seal is in a C6 automatic transmission. The C6 had 31 splines. That open part of the yoke should not interfere with the yoke sliding into the transmission. Is the yoke engaging the splines? The toploader transmission had two different splines. The small bearing transmission had 28 splines while the big bearing had 31 splines. David Kee lists three yokes for the toploader. A 28 spline X 1310 slip yoke (#28-1310), a 28 spline X 1330 slip yoke (#28-1330) and a 31 spline X 1330 slip yoke (#31-1330). The 1310 and 1330 numbers refer to the size of the u-joint. I would double check to make sure the splines match. I know a yoke for a C-4 will work in a small bearing toploader. The yoke I used with my toploader came from a Granada with a C4 transmission.