you might also try someone holding the shift lever in neutral, between 2nd and 3rd (as if shifting from 2-3) and then moving the R-1 shift lever on the trans back to neutral. A lot of times, sloppy shift linkage on the column will cause this (I have a cushman with 3 on the tree and it is HORRIBLE! it does that all the time!)


Mike
1955 Chevy 6400 ex-flatbed (no bed now!) sold September 2023
In the Stovebolt Gallery
1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery
1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

Sufficient unto the day is the evil thereof