I have a 2009 Prostar with a ISX and with fuel I am always 13,400 on front axle. Well yesterday in Tennessee the scale put me OOS. The dot cop said almost every prostar or Volvo are over on there front axle and I had 3 options
1, slide my 5th wheel
2, move my load
3, get load range H tires
Well 5th wheel all the way back, 23 pallets evenly loaded and tarped 14,440 on weight.
So I guess I needed to replace my 3 month old steer tires. Called around and 3 miles away was a Goodyear dealer with 2 load range H tires. I dropped the trailer went over the scale and was 13,400 the cop told me either tow it to the tire shop or have them come to you....so they came and put 2 new tires on and I was good to go. But that dosen't solve the problem. How can I increase the weight rating on my front axle. Or remove a fuel tank,my APU, or my headache rack...because the next time I will really be in a jam...
Overweight front axle
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by earnies2, Nov 1, 2019.
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earnies2 Medium Load Member
- May 17, 2012
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Cat sdp . .
- Apr 8, 2012
What is your front axle rated for..... 12K or 13,xxxK...?daf105paccar Thanks this.
Mike250rs Heavy Load Member
- Sep 24, 2019
I assume you verified the weight bobtail on a cat scale.
Your real issue is the hulking ISX sitting over the front axle. The headache rack and such are not a factor with steer axle weights.
Storage boxes near the front, deer guards and APU's mounted by passenger seat will cause issues.
The axle rating and tire's rated weights are what is getting you out of service. The tires rating is on the sidewall, you have two on that axle so double it and that is your maximum weight for that axle. For example, Max Load Single - 2800Kg (6175lb) x 2 = 5600Kg (12,350lb)
You will need heavier rated tires more than likely, depending on what is legal max weight for your jurisdiction.
I think I read his post, I was just clarifying it for him.
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