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73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Topic started by: Bowtie4004x4 on September 28, 2008, 01:28:45 pm
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The core support brackets mounted to the frame on my 78 3/4ton 4x4 are cracked, both of them. The core support itself seems undamaged. I wonder if anyone has an idea of why this happened? Cab mounts/supports were non-existant, I wonder if this caused too much stress on the core brackets? Any thoughts? Thanks!
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I would have to say yes, it seems to me quite a bit hangs off the core support. If your cab mounts and supports were shot and the cab was bouncing, I could see the fenders transmitting some of that stress to the core support. And whatever trashed the cab mounts were working on the core support also.
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And whatever trashed the cab mounts were working on the core support also.
Rust. Sounds logical, Vibration does more damage than brute force at times. I was thinking more along the lines of alignment/force damage but I'll bet your right. The vibration transmitted from the cab mounts being shot thru the fenders to the support is more than likely the culprit.