Carrying a Spare out front

I have a 2004 GMC 2500HD 6.6L diesel with no additional cooling system modifications. It has had a spare tire mounted on the front push cage for the last 5 years with 1976 Idle Time truck camper on the back. It is my daily driver and has been driven as far as 862 miles (Oklahoma City OK to Flagstaff AZ) in a straight 14+ hour run and to Taos NM, 520 miles in the heat of summer sometimes pulling my 28ft Aluma-Lite, Holiday Rambler BH a few times a year. Driving 400+ miles with no stops. I have a 20 gallon secondary tank that I can pump into the main tank with out stoping. I have been stuck in slow stop and go traffic in the Oklahoma summers more times than I care to think about. I have never had any over heating problems before or since I mounted the tire up there despite what many said would happen. It stands off the grill by 8 to 10 inches. I can't say it will work for you but it has worked with no problems for me for many years.