× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: 6 speed Allison??
Posted to HD/Fleet Forum on 2/16/2001

[...trimmed text...]

Wayne

The trans you describe is a MT40. The pedal is for a retarder valve. I've seen lots of these through the years, every one I saw had the retarder valve unhooked to keep the trans from over heat... Login to read more.