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Unread 03-21-2014, 04:24 PM   #1
spreble21
Registered User
1998 TJ Wrangler 
 
Join Date: Jun 2013
Location: albany/pittsfield, new york
Posts: 5
Play in my driveshaft

I am hearing what sounds like bearing noise from my front diff. my driveshaft doesn't have up-down, side-side play; instead I can spin my shaft about a quarter inch before tension, all u-joints good, just replaced bearings inner and outer. yoke nut is tight. and I already checked with the driveshaft dropped the yoke and pinion are spinning together so the play isn't in their spline. haven't opened the diff cover yet I intend to tomorrow. I put it on a snowbank to look at it and the stretch it put on the driveline seemed to stop the play. It has a 4 inch. suspension lift with pro-comp control arms and my bushings are bad.(procrastinating the replacement) also just had the driveshaft cv joint rebuilt and balanced.

question #1: should I have play in this way?

question#2: if not does it sound like it's my spider gears or ring and pinion?

question#3: could my bad bushings be trashing my driveline?

sorry it's a lot to read

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Unread 03-22-2014, 08:03 AM   #2
biffgnar
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2006 TJ Wrangler 
 
Join Date: May 2008
Location: Westchester, NY
Posts: 13,577
First, you need to fill out your profile so we know what we're dealing with here. Second, that much rotational freedom in a driveshaft is perfectly normal. Its the gear backlash. If you have a problem it is something else. Have you pulled the driveshaft and driven to see if the noise goes away? Opening the diff and taking a look is never a bad thing either.
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Unread 03-22-2014, 07:40 PM   #3
spreble21
Registered User
1998 TJ Wrangler 
 
Join Date: Jun 2013
Location: albany/pittsfield, new york
Posts: 5
took a look in the diff. all looked well, checked the back of the shaft at the t-case, the bolts holding the ujoint there were loose. thank you for your help. i'll be updating my profile to help future threads, thank you
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