CLASS RACER FORUM - View Single Post - Dan Fletcher Super Stock Videos

Don Sofranko · 10-07-2014, 12:08 PM

Seems like the vibration starts as soon as the coasting begins, then gets so bad he feels it in the shifter, and the rest of the car at the end.

I would have the gear changed right away. In a stick car, with a 6.50 screw, we would crack pinion teeth after 45-50 runs. Then after 50, you could barely touch the shifter in the shutdown coast. We found a better gear oil helps a bunch, on gear life. A new gear should make it whisper quiet in the shutdown.

I know you guys get more gear life than that. But there is always a limit...
Mark Williams knows drivelines, and sells the better gear oil. Regular gear oil isn't good enough... get the torco for longer gear life.

www.markwilliams.com/Catalog/pg23.pdf
torco sells for 10.70 a quart now, what are you using currently?

10-07-2014, 12:08 PM	#5
Don Sofranko Member Join Date: Sep 2002 Location: Iowa Posts: 121 Likes: 0 Liked 128 Times in 32 Posts	Re: Dan Fletcher Super Stock Videos - Opinions Seems like the vibration starts as soon as the coasting begins, then gets so bad he feels it in the shifter, and the rest of the car at the end. I would have the gear changed right away. In a stick car, with a 6.50 screw, we would crack pinion teeth after 45-50 runs. Then after 50, you could barely touch the shifter in the shutdown coast. We found a better gear oil helps a bunch, on gear life. A new gear should make it whisper quiet in the shutdown. I know you guys get more gear life than that. But there is always a limit... Mark Williams knows drivelines, and sells the better gear oil. Regular gear oil isn't good enough... get the torco for longer gear life. www.markwilliams.com/Catalog/pg23.pdf torco sells for 10.70 a quart now, what are you using currently? Last edited by Don Sofranko; 10-07-2014 at 12:15 PM.