ditto what the others siad.
I have an 850 that will do it now and then.
I installed a 4" spring to the dash with a sheet metal screw.. spring has a hook end. once in 3rd gear i slip the stiff spring on.
has never jumped out when tied it.
that's the redneck bandaid fix on that beater auction find laoder tractor.. it's not the correct fix.. which may be like awhtx points out.
trnas disassembly.. etc..