Grinding sound when I reverse - Ford Powerstroke Diesel Forum
 
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post #1 of 3 Old 04-22-2013, 06:33 PM Thread Starter
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Grinding sound when I reverse

I just recently got new tires and rims, I had 16.5 wheels and upgraded to 17. The old tires were Bfg all terrain in 35x12.5x16.5 and new ones are the same just 35x12.5x17. When I was reversing and turning the wheel all the way right, I heard a grinding noise coming from what sounded like the rear.. Any ideas what it is?
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post #2 of 3 Old 04-23-2013, 10:03 AM
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I'd start by cranking the wheel and looking under to see any potential points of contact. Even though the tires are the same, since they are a different line they will sit/posture differently since they will have a different sidewall posture and are a different manufacturing line. That said, you say it sounds like it's coming from the rear, I'd take a look at your rear brakes. More details would be good though. Does it do it only when idling along, or when backing up under pressure/etc. You could have a drive shaft bearing or something in the rear end going bad that is only making noises under reverse pressures.

2003' F350 7.3L Lariat Crew-Crab 4x4 6spd Manual Short Bed. 3.73 ratio and that's about all i know... so far.
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post #3 of 3 Old 04-23-2013, 10:12 AM Thread Starter
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It actually does it when I go forward too, it's when I have the wheels locked left or right. I think it might be the tires rubbing against the leaf springs, however on my old set of tires, it would be really hard to turn when it came close to locking the wheel right or left.
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