Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: keatsie on February 18, 2009, 09:32:58 PM

Title: Which is duff
Post by: keatsie on February 18, 2009, 09:32:58 PM
How do I tell if the difference between a rear wheel bearing worn or a rebuild required on a diff on a Grand Cherokee 4ltr 2000.

I have a whine which comes in at 60 ish and is only present under load, back of the throttle or go down hill all goes quite? so bets on which needs doing?
Title: Re: Which is duff
Post by: mack on February 18, 2009, 09:39:05 PM
Jack it up one side at a time and check each rear wheel for play or tightness in the bearing.

 :-?
Title: Re: Which is duff
Post by: Panic mechanic! on February 18, 2009, 09:41:54 PM
thats diff based
Title: Re: Which is duff
Post by: keatsie on February 18, 2009, 09:42:48 PM
If it's the diff does it continue to get noisy or go bang and how long ish before it goes bang?
Title: Re: Which is duff
Post by: dxmedia on February 18, 2009, 10:12:38 PM
You'll know it's a diff not a bearing a long long long time before it goes bang ;)
Title: Re: Which is duff
Post by: Dodster on February 19, 2009, 09:02:24 AM
My rear D35 has been howling and growling like a $20 whore for the last 15 months or so, its very slowly getting worse tho and is next on the list.. :roll:

Have a read of...  this (http://http://www.ringpinion.com/FAQ.aspx#31) .
Title: Re: Which is duff
Post by: isle of man on February 19, 2009, 10:30:56 AM
SHOCK!!! you have a D35 rear on the TJ?
Title: Re: Which is duff
Post by: Bubba on February 19, 2009, 10:38:59 AM
he has a zj too
Title: Re: Which is duff
Post by: eastryjeep on February 19, 2009, 03:21:22 PM
Take it down to Quikfit and ask them to check it out.
When they have decided which side of the coin to go for, diff or bearings and while its still up in the air, whip out a long screwdriver, put the sharp end just inboard of the brake drum and put the handle to your ear then spin the wheel (dont forget to check both sides), if it goes grumble grumble graunch etc, shake your head sadly saying OOhh, AAhh, calamity, how am I going to afford that, better let me go think about it, and beat a hasty retreat.
Now, if it was the bearings, Lighthouse here we come, and if not, WELL - thats your decision, but if you get your first quote on an ARB at least the other options wont seem quite so painfull  :!: