Everything you need to diagnose and service your Tuff Torq transmission is available online (manuals, schematics, parts, manufacturer's advice, videos etc). A new transmissions costs $600+ dollars plus the shop labor to install it. This can easily add up to more than the average used tractor is worth. That is why most owners just give up and buy a new lawn tractor. But if you can service your own transmission for less than $100 in replacement parts you'll save money plus have the satisfaction of knowing you did it.
Following is a 2 part amatuer video from youtube showing the process involved:
Part 1 - Removal Process Video
YouTube - punchyoureyehole
Part 2 - Service Process Video
Note - Most of you will not have to completely rebuild your transmission. Often times just filling and/or changing the transmission oil is all that is needed. In most cases you will still need to remove it to change the oil so the first video will be helpful. This is for a K46 transmission. Your transmission could be different but the intent is to show you the general process so that you can decide if you want to attempt this yourself.
Finally, this is an "amatuer video" and the person who put it online is not a professional transmission mechanic. He just wanted you to see what the process was and that it can be done at home . Anyone attempting this should first study and carefully research the full process ahead of time. Tuff Torq sells transmission service and repair kits plus provides free technical advice by phone and online.
Contact Tuff Torq Tech Rep. Derrick Dalton. He is very helpful and may be able to help you pinpoint the cause of your problem for your particular model transmission. Good luck!
Derrick Dalton, Technical Service Rep
Tuff Torq Corporation
After Market Services
6041 Hunter Road
Toll Free 866-572-3441
Tuff Torq Trouble Shooting Flow Chart
Edited by Aussiedog, May 31, 2011 - 12:41 PM.