Vmac3 Posted January 11, 2023 Share Posted January 11, 2023 Flex pipe? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/67570-clunking-noise/page/2/#findComment-520888 Share on other sites More sharing options...
Pete M Posted yesterday at 09:20 PM Share Posted yesterday at 09:20 PM On 7/30/2021 at 9:57 PM, Rsc1717 said: Are you meaning we’re the leaf springs tie up to the front axle they a centering pin in the middle or what. I was thinking it was maybe my front spring bushings . I wanted to put this out there even though it's an old thread. I had a loud bang/ pop coming from front end loaded around corners, left and right turns. Replaced everything. Bushings,pins, rear hangers, bearings, king pins, u bolts etc... still same problem. Ended up being the leafs moving . It had leaf clamps just outside of the u bolts but none out by the hangers where it went down to 4 or so leaves. I made some brackets , no more bang and it was bad . Felt like the tire was going to come off. Same sort of thing on the back and it was the steel centering pins in the rubber pads that hold the ends of the leaf springs. Hope this helps someone. 1999 Mack RD 688s. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/67570-clunking-noise/page/2/#findComment-573034 Share on other sites More sharing options...
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