View Single Post
Old 07-18-2018, 06:56 AM   #3
rockfla
Senior Member
 
rockfla's Avatar
 
Join Date: Mar 2014
Location: Jacksonville FL
Posts: 3,927
Default Re: ‘39 Merc light grinding sound through shifter

Open the top of the transmission and pour a can of STP in it. You think it shifts smooth now and it will be super quiet!! My dad has done this for years on all of our V8's and WWII Jeeps!!!
rockfla is offline   Reply With Quote