I'm using a T5 out of a 1989 Mustang GT in my hot rod (1946 Ford pickup with 351W). Since I'm using Dolphin mechanical gauges I had to have a custom speedo cable built for it but when I was finally able to get it out on the road I found out the if I'm doing 58 mph I'm actually doing 70 mph & in order to do 60 mph I have to go about 48-49 mph. Figuring all this out with gear ratio, tire diameter & all I would need a 14 tooth driven gear but nobody makes one. The drive gear is yellow (7 tooth, the 6 tooth I believe is black), I've checked it several times & included that info in with the order for the cable. Now the cable manufacturer says I need a 7 or 8 tooth drive gear or a $200 to $300 ratio adapter. Has anybody had a similar experience or know of a cure other than tearing the trans apart?
Thanks
chuck
Thanks
chuck