05-04-2016, 09:30 PM
I had the same issue 10 years ago with the front end weight of my 1992. After talking with Newell's then Engineering VP, it was suggested that I might want to change the front tires to 305/75R24.5 tires. Newells with the 11R24.5 H tires were weight limited by the front tires. The front axles, brakes, etc were all rated to handle greater loads than the front tires, although the 11R24.5 Bridgestones that were used seem to hold up very well. The 11R24.5 tires have a max load rating of 7160# each or 14,300# for the front. The 305/75R24.5 is J rated and has a max load rating of 8270# each or 16,500# for the front.
Although I have the 8V92, my weights and tank capacities are similar to yours but I have been running 305/75R24.5 Michelins for the past 9 years (2 sets) and I feel comfortable with the load ratings. I believe that the last, or one of the last Newells built with an 8V92 was #376 so yours appears to have been ordered with the 8V92 dual fuel tank layout. BOTH of my fuel tanks are next to each other and are located not far behind the front axle with capacities of 245 gallons and 85 gallons. My water tank and waste tank are near the rear axle and are 165 and 175 gallons respectively.
I have found that decreasing the tag axle pressure has just slightly less than 1 to 1 impact on increasing the weight carried by the drive axle with only a small impact on reducing the weight on the front axle.
Run 305/75R24.5 Michelins at 120 on the front and get some piece of mind knowing that the 11R24.5's have worked but now you have the extra margin of safety on the front tires. They fit fine under the front wheel wells on my coach. The other recommendation is slow down, especially during the summer in hot climates. Tires are more likely to fail under the stress of high speeds and high temperatures and old age. I don't believe your front axle is overloaded, only your front tires.
Although I have the 8V92, my weights and tank capacities are similar to yours but I have been running 305/75R24.5 Michelins for the past 9 years (2 sets) and I feel comfortable with the load ratings. I believe that the last, or one of the last Newells built with an 8V92 was #376 so yours appears to have been ordered with the 8V92 dual fuel tank layout. BOTH of my fuel tanks are next to each other and are located not far behind the front axle with capacities of 245 gallons and 85 gallons. My water tank and waste tank are near the rear axle and are 165 and 175 gallons respectively.
I have found that decreasing the tag axle pressure has just slightly less than 1 to 1 impact on increasing the weight carried by the drive axle with only a small impact on reducing the weight on the front axle.
Run 305/75R24.5 Michelins at 120 on the front and get some piece of mind knowing that the 11R24.5's have worked but now you have the extra margin of safety on the front tires. They fit fine under the front wheel wells on my coach. The other recommendation is slow down, especially during the summer in hot climates. Tires are more likely to fail under the stress of high speeds and high temperatures and old age. I don't believe your front axle is overloaded, only your front tires.