My implements are 33 inches tip to tip, and I have no problem. I also added the fast hitch attachments, and now I just back up, and raise the lift arms under the pins, and they lock in place. That way you don't have to pull the arms farther apart when you hook up an attachment. The only implement that I had to turn the pins in, and add longer than standar pins, was my dirt scoop, and that that was only an issue when it has about 700lbs of dirt or gravel in it. It was lightly touching the tires when it was loaded down, however now that I tightened the turnbuckles on either side of the lift arms, so they do not allow the arms to hit the tires. As a combination of these steps, I have not had a single issue using full size Cat 1 implements. The fast hitch attachments listed below, extend your arms out a bit, and that also seems to help. Hope that helps a bit..
[ame=http://www.amazon.com/Field-FTF-01FH-Change-System-Category/dp/B0042F5LBC/ref=sr_1_4?ie=UTF8&qid=1338002825&sr=8-4]Amazon.com: Field Tuff FTF-01FH Fast Change Hitch System Category 1 and 2, Black: Home Improvement[/ame]
This is my tractor with the fast hitch lift arm ends attached. The length of my draw bay is 32 inches.