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rear differential wine at slow down? #663540 04/07/10 07:54 AM 04/07/10 07:54 AM
Joined: Sep 2003 Posts: 654 Lexington,VA 6 68gtxsurvivor OP mopar
68gtxsurvivor OP mopar 6 Joined: Sep 2003 Posts: 654 Lexington,VA	Just got my 4.10's installed. The rearend is whining when I let off the gas.Doesn't hardly do it at all when I accelerate. Whats awrong? Pinion depth?

Re: rear differential wine at slow down? [Re: 68gtxsurvivor] #663541 04/07/10 08:52 AM 04/07/10 08:52 AM
Joined: Mar 2010 Posts: 151 MotorCity RC91 member
RC91 member Joined: Mar 2010 Posts: 151 MotorCity	Not enough pinion bearing preload is the usual cause of noise on deceleration.

Re: rear differential wine at slow down? [Re: RC91] #663542 04/07/10 12:06 PM 04/07/10 12:06 PM
Joined: Dec 2004 Posts: 1,061 New Mexico D dmerc super stock
dmerc super stock D Joined: Dec 2004 Posts: 1,061 New Mexico	Quote: Not enough pinion bearing preload is the usual cause of noise on deceleration. If you have a crush sleeve you need to use an inch pounds torque wrench when tightening to get the correct drag. If you have shims you might have to remove some.

Re: rear differential wine at slow down? [Re: dmerc] #663543 04/07/10 12:18 PM 04/07/10 12:18 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Usually once the pattern is set trying to change it is fruitless and the noise is there to stay.

Re: rear differential wine at slow down? [Re: MoparforLife] #663544 04/07/10 05:55 PM 04/07/10 05:55 PM
Joined: Jan 2003 Posts: 1,883 Northern OH R rapom top fuel
rapom top fuel R Joined: Jan 2003 Posts: 1,883 Northern OH	I had that problem on a my Camaro after I changed gears and the pinion nut had to be tightened down more. Noise went away. So maybe all you have to do is tighten down your pinion nut somemore.

Re: rear differential wine at slow down? [Re: rapom] #663545 04/07/10 08:38 PM 04/07/10 08:38 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	crush sleeve

383man [Re: scratchnfotraction] #663546 04/07/10 11:54 PM 04/07/10 11:54 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Can also be caused by the coast pattern off. I have seen some with the drive side good and the coast side off. Depth and backlash can cause a wrong pattern. Ron

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