Grinding vibrating when it dips
Senior Member
Joined: Jun 2011
Posts: 640
From: Northern Maine
Correct me if I'm wrong here: The transfer case and the front differential are mounted to the chassis. When the body jounces and rebounds, both driveshafts and both half shafts move up and down independently. If the body is lowered, something could easily contact any of them. Same holds true if front chassis ride height was lowered out of spec. Over time, not miles, torsion bars lose their lift allowing the body to drop lower.
you are correct... but he was referring to the front drive shaft which is stationary.. not half shafts.
Moderator
Joined: Mar 2009
Posts: 8,453
From: Belleville, Michigan
I stand corrected, the front drive shaft shouldn't move with jounce & rebound. But the half shafts do, and something may be contacting them. Checking front chassis ride height wouldn't be a bad idea.
Last edited by Captain Hook; Jan 28, 2013 at 09:34 PM.
Senior Member
Joined: Jun 2011
Posts: 640
From: Northern Maine
ride height would help him...but alas, it's lowered...
Thread Starter
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Junior Member
Joined: Nov 2008
Posts: 277
From: Indianapolis, IN
OK.. I lowered this over 2 years ago. Did not do this for 2 years. Rode smooth. Just started doing this a while back. checked ride height nothing has changed. I so no points of contact.
I am thinking the bearing is moving and causing the rotor to grind if you will.
For fun I can raise the thing back up to stock top see if it goes away. Takes about an hour.
I am thinking the bearing is moving and causing the rotor to grind if you will.
For fun I can raise the thing back up to stock top see if it goes away. Takes about an hour.
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