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09-23-2002, 02:25 PM | #1 |
Senior Member
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
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Loud & WIERD popping noise in front end-->mystery solved.
A few months ago I posted a question about a strange popping noise in my front-end that only happened when I pulled away from curbs, or sometimes just stomped the gas. It never seemed to happen when I hit a chug-hole, or mashed the brakes, or when I went over speed bumps, which is usually when I would think ball joints would be bad. It had me baffled, and it sounded VIOLENT, so I figured I would find the reason when I did my front-end rebuild, which I started Labor Day weekend, so....
I found it. My passenger side lower control arm center rod was completely loose on one end. The passenger side has NEVER been rebuilt, and taking it apart has been a real b!tch. The threaded cap that goes into the control arm, and onto the rod had been ovaled out. It looked as though play was introduced some time in the past, and the rod has been slamming back and forth inside the cap for a long time. The grease was basically thick rust-colored paste where the cap has slowly been disintegrating, and when I got it loose from the control arm it just fell right off the rod. There's no threads left at all. Luckily my lower control arm hasn't been ovaled out as well by all of this movement, which surprised me. All of the wear was absorbed by the cap. Just an FYI for anyone who hears a loud pop from their front and it doesn't seem like it's a ball joint... Happy Trails.
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'69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA. |
09-23-2002, 04:49 PM | #2 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,856
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Cobalt, I've had a few of these thumps lately. Thanks
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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