I have a 1964 ranchero with a 351w top loader 4 speed and 411 rear end this is an awesome hot rod i have almost completely restored her my problem is the speedometer runs backwards and i mean when i am backing up it gives the speed when in forward it pegs down the gague but the milages is running backwards , it only had 94k on it when i got it if i drive a few more years it will be back to zero ....lol... any help here i have heard of this before but never herd the fix , again this is a 71 yr engine dont know where the tranny came from , thinking may have come out of a car that the needle drops from the top of the gague ??? have herd of reversing adaptors but cant find any ...suggestions i am open for ? thanks