Here's some pics of my transmissions that might help someone more savvy than I to diagnose this problem.
Here are the shift levers for both the H42 and H55. The H55 has the circular teflon cap. The H42 has the machined flats on the sides.
Notice the bright wear mark on the H42's lever?
Now here are a couple of shots down into each transmission.
The H55 has a cup to capture the end of the shift lever.
The H42 does not. You can see the three forks that form the 'H' shift pattern and the side spring that blocks reverse. (it appears to be shifted into 3rd) Notice the heavy wear from the shift lever, presumably caused by a worn out blue shifter bushing allowing the shifter too far into the transmission. Could this wear pattern create enough of a ridge to impede shifting?
Does anyone see a smoking gun? I think this is likely a cover plate/shifter issue rather than a major gear problem.
Here are the shift levers for both the H42 and H55. The H55 has the circular teflon cap. The H42 has the machined flats on the sides.


Notice the bright wear mark on the H42's lever?

Now here are a couple of shots down into each transmission.
The H55 has a cup to capture the end of the shift lever.

The H42 does not. You can see the three forks that form the 'H' shift pattern and the side spring that blocks reverse. (it appears to be shifted into 3rd) Notice the heavy wear from the shift lever, presumably caused by a worn out blue shifter bushing allowing the shifter too far into the transmission. Could this wear pattern create enough of a ridge to impede shifting?

Does anyone see a smoking gun? I think this is likely a cover plate/shifter issue rather than a major gear problem.
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