A John Deere D105 just came into the shop today with a non-functioning drive system. Unit is only 2 years old with 79 hours on it. It has one of those General Transmissions on it. The gear selector on the right hand side has 3 positions: forward, neutral, and reverse. The single foot pedal on the right hand side moves the tractor both forward and backward, depending on which position the gear selector is in, kinda like some of those double-belt variable speed systems MTD uses.
When the gear selector is put in either forward or reverse, the foot pedal drops down. The gear selector can't be put back into neutral until the pedal is manually pulled back up. It seems like something internal has broken, and doesn't hold the pedal up. I'm not familiar with General Transmissions, so have any of you seen this before? What do you think is causing the problem? I looked up a new transmission on jdparts.com, and it's less than $400, which is pretty cheap as far as transmissions go. What's the warranty on one of these things? I want to be sure it's not still covered under warranty before I start trying to fix it.
Thanks for any advice guys.