Falling out of reverse

[charles in east texas]

My 91 year old friend's 51 crestliner with overdrive keeps falling out of reverse.
What needs to be done to fix this problem??

Thanks,
Charles

 

[Frank Miller]

Adjust the linkage. It may not be bringing the shift fork to the detent.

 

[charles in east texas]

Thanks. Will try that in the morning. Charles