Re: allison mn3000 engine brake downshift?
LEN.... Valley GMC/ALLISON charged me $200.00. They also told me that it would be no charge if i didnot like it set to 5th gear and would like to change it again. Seems to work good, it preselcts 5th gear and you can manualy downshift it fron there. If you have any questions just ask... Thanks for your intrest... Metalman...