mustangmoe Posted November 25, 2007 Report Share Posted November 25, 2007 Hello fellow GT-H owners, Have any of you heard any whining sounds coming from the rearend when making slow right or left hand turns. I know from years ago the posi units on some make some noise but it is starting to worry me a little. The volume is loud enough to hear over the exhaust from inside the car. Otherwise the car seems to drive and handle fine. Thanks for sharing what you know or have experienced. :o Link to comment Share on other sites More sharing options...
07SHELBY GT Posted November 25, 2007 Report Share Posted November 25, 2007 Common problem,If it is still under warranty,They will replace the clutches in the unit,Don't let them talk you into trying a fluid change,That might work for several days then you will be back for the replacement of the clutches. Link to comment Share on other sites More sharing options...
LuLu Posted November 25, 2007 Report Share Posted November 25, 2007 TSB 06-19-2 "LIMITED SLIP MOAN/GROAN NOISE DURING LOW SPEED TURNING MANUEVERS" This article supercedes TSB 06-12-11 Issue Some 2005-2007 Mustang GT vehicles equipped with the 8.8 inch limited slip axle may exhibit a moan/groan noise when making tight low speed turns. This may be more noticable when the axle is at full operating temperature. The noise may also be confused as originating from the brakes or steering system. Action Replace the limited slip clutch pack with PN 6L1Z-4947-B 3.3 hours. Sounds like an opportunity to throw a few extra bucks at the wrench and swap out the stock 3:55 gears to 4:10s. That's my plan. Link to comment Share on other sites More sharing options...
stg Posted November 25, 2007 Report Share Posted November 25, 2007 Hello fellow GT-H owners, Have any of you heard any whining sounds coming from the rearend when making slow right or left hand turns. I know from years ago the posi units on some make some noise but it is starting to worry me a little. The volume is loud enough to hear over the exhaust from inside the car. Otherwise the car seems to drive and handle fine. Thanks for sharing what you know or have experienced. :o mine was doing it about 2 months ago!!!check TSB-061902,,,TO REPLACE CLUTCH PACK ,,,Have not had a problem since this work was done good luck Link to comment Share on other sites More sharing options...
mustangmoe Posted November 26, 2007 Author Report Share Posted November 26, 2007 Thanks for sharing the news. Not sure what happened to cause the issue. The unit has 13k on it so it will be replaced under warranty. How much impact would the 4:10 have ? Link to comment Share on other sites More sharing options...
just-larry Posted November 26, 2007 Report Share Posted November 26, 2007 Thanks for sharing the news. Not sure what happened to cause the issue. The unit has 13k on it so it will be replaced under warranty. How much impact would the 4:10 have ? I don't think you will be happy with a 4:10 gear. While the street performance would certainly go up, (possibly take .75/sec off of a qtr. mile ET) you will likely pick up ring/pinion noise at highway speeds, the increase in the motor RPMs will significantly impact the gas mileage along with adding more wear to the motor. Unless you recal the computer for the new gear the speedometer will be way off and of course the shift timing also. Link to comment Share on other sites More sharing options...
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