H55 Transmission Shift Selector Out of Sync

[Cactus Camper]

BLUF: H55F gear selector shaft out of sync

Recently removed the H55F shifter cane from the transmission top cover (60s style) to have it bent for better clearance with center console.

At the time it was removed, I was careful (or at least I thought so) to have it placed in neutral.

Upon reinstalling, the shifter cane went in no problem; however, it seems things are out of sync. While in what would be the neutral position, the output shaft still spins.

Currently have the rear end on jack stands for troubleshooting. Have the transmission FSM but curious if there are thoughts on how one would go about re-establishing gear positions.

 

[Cactus Camper]

Current view with the shifter removed. Need to find the turkey baster to pull out that residual oil for a better view of what needs attention.

The internals look somewhat different to the photo posted above.

 

[Living in the Past]

The H55F has a second row of shift rods above the ones used in the four speed. Can't use a four speed to diagnose a five speed. When you say the output shaft spins do mean it moves the cruiser? If so what direction and if forward what gear does act like?

 

[Cactus Camper]

Great question, i'll expand on that to help be clearer. Fortunately, at the time i discovered this issue, the rear end of the cruiser was raised on jack stands. I was suprised when starting the engine and the transmission - thought to be in neutral gear - and actually look down and see the rear wheels spinning.
Shut the engine off and disconnected the rear DS. Now, my visual indicator of transmission behavior/gearing is the rear TC output flange. I've done the TC shifter gate mod, so i can shift into 2lo. That's where i currently have the TC set. With engine off, i can spin the output flange by hand, in what i believe to be the normal neutral H55 position. As a test, i shifted the transmission into 1st and felt that the output flange resisted (as expected). I originally, though i had resolved my issue after observing that. Since then, I've re-started the engine again and it appears the output flange spins (CW IIRC) with what i expect to be the neutral H55 gear position (which is what i was not expecting).

Used my borescope to capture a couple of grainy images of the inside underneath the 6x top cover. What is the expected neural position for the shift rails? Let me know if there is value in getting additional borescope images of a specific area.

 

[Living in the Past]

Was the parking brake set when the rear axle tires were off the ground? With engine off and transmission in Neutral you spin the rear out put shaft on the transfer case could a issue in the transmission with shimming. With the driveshaft bolted in and have brake set would check it the wheels still spin when the engine is running and hand brake set.