dickbuick Posted April 30, 2017 Share Posted April 30, 2017 I have a 2002 Pete 2.5 million miles 6NZ turned up to the max Stone hauler over loaded to the max Truck leans to the left in the rear 1" and to the right 1/2" in the front I put a string on top of the bottom right frame flange from front axle to front drive axle and it has 3/8" sag Truck was never wrecked but always over torqued Any one ever see a frame twist from torque? Quote Link to comment https://www.bigmacktrucks.com/topic/49693-2002-frame-twist/ Share on other sites More sharing options...
TeamsterGrrrl Posted April 30, 2017 Share Posted April 30, 2017 Probably just metal fatigue hastened by overloading. You've gotten your money's worth out of it, time to replace it with a Mack! Quote Link to comment https://www.bigmacktrucks.com/topic/49693-2002-frame-twist/#findComment-368716 Share on other sites More sharing options...
dickbuick Posted May 1, 2017 Author Share Posted May 1, 2017 I was thinking that but wanted to know if anyone ever seen it happen Quote Link to comment https://www.bigmacktrucks.com/topic/49693-2002-frame-twist/#findComment-368769 Share on other sites More sharing options...
Mackpro Posted May 3, 2017 Share Posted May 3, 2017 On the Macks CHU trucks with air ride. We had lots of chicken feed trucks that straight from the factory they sat level and straight. Then after adding PTO's and hyd tanks and all sorts of crap. They would lean down on the right front (bumper) and be high in the left rear (end of frame rail). Mack came out with a bulletin on the CXU and one for the CHU with different height replacement blocks to level the front ( right to left) . After getting the front straight the rear would also correct itself. Maybe its a weak steer axle spring? But if you got enough HP and cubic inches I guess you could tweak a frame. We never had that problem with the Mack! LOL lean.pdf Quote Link to comment https://www.bigmacktrucks.com/topic/49693-2002-frame-twist/#findComment-368933 Share on other sites More sharing options...
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