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Message: <blockquote data-quote="Pantera1889" data-source="post: 1467051" data-attributes="member: 24404">Please remember to replace ALL of the bushings! The fact that you mentioned the shaft movement makes me suspect that the large bushing in the rear of the case is worn. This is VERY common with this trans (especially in high mileage units). When the bushing wears enough, the output shaft will wear into the rear of the case and damage it. At the shop that I worked at, we would have the case bored and sleeved when this damage was found. The bushing is a bear to remove and replace but it is extremely important. You will not need to purchase lip seal protectors for this trans. Simply lubricate the seals with a combination of STP engine treatment and ATF. Use a .015" or so feeler gauge ( make sure there are no sharp edges on the feeler gauge) and gently go around the perimeter while applying slight,even pressure to the piston. I made a lip seal tool using a 6.5" long piece of 3/8" steel tubing and a feeler gauge that I shaped into a very gentle point . I inserted the feeler gauge into the tubing and smashed it flat to hold it in place. I used that tool every day for nearly 20 years and after thousands and thousands of seals, It still works perfectly. Pay close attention to the servo piston bores ( where the pins pass through the case). These are known to wear as well . Sonnax makes a kit to bore them and press in a (bronze?) sleeve.  Ron</blockquote>