Spline Count

Yes you may find that your slip yoke has the space where one spline is missing. When counting splines you always count the actual spline tooth and you will always add one more to your total count when you see the space. For example on a GM TH-350 slip yoke you may see 26 internal splines and a space...this is in fact a 27 spline slip yoke. This applies to ALL splined parts that have the space. For Chrysler owners you may see some companies list their 904 slip yoke as a 25 spline or 25/26 when in fact it has a 26 spline output shaft on the transmission. The 727 slip yoke may be listed as a 29 spline or 29/30 when in fact it is has a 30 spline output shaft on the transmission. This can be very confusing when selecting a slip yoke. The space is found on the slip yoke but is not found on the output shaft of the transmission or transfer case. There is no need to try to match the space with a corresponding spline on the output shaft. You can install the slip yoke in any position on any spline and it will perform the same way each and every time. The transmission output shaft is always the best choice when counting splines because they always have the full amount. Remember this and you will never be confused again.