Bumping out of 2nd

Post 42 edited

71
When the Chrysler A833 came out it had a interlock/detent system in the side cover.This system had the job of keeping the shift-forks in the correct positions, as to in gear or in neutral.It also included a system that made it impossible to engage more than 1 gear at a time.The trouble is, the detent system is rather soft, and the matching brass forks would break their pivot stubs off.
So in 71,IIRC, Ma introduced a second system. It had steel forks.This solved the breakage problem. At the same time they changed the detent/interlock system, to include an improved, much stiffer system, with special pivot-pin extensions.

The "early" system was a hair easier to shift, felt sweeter,allowed accidental bump-outs, and, as you've discovered,allowed easy bump-outs as the clutching teeth got worn.
The "late" system requires a bit more effort to initiate stick travel, and makes accidental bump-outs much more difficult, and, at least delays bump-outs due to aging parts.