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Thread: Midwest Chassis 9"
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10-26-2009, 09:40 AM #1
Midwest Chassis 9"
I purchased my car with a Midwest Chassis 9" rearend already installed in it. I never take it to the track and very rarely boil down the tires, yet, here recently, when I go slowly around a corner, a horrendous racket comes from underneath the car, but only when the clutch is out and in gear. Has anyone else with a Midwest Chassis 9" rearend ever experienced this? I thought 9" rearends were supposed to be bulletproof??? If I abused the car, I would understand, but I baby it. Help!
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10-26-2009, 10:28 AM #2
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10-26-2009, 10:35 AM #3
- Join Date
- Sep 2009
- Location
- Nebraska
- Posts
- 151
Pewter- 2002 Camaro SS
Do you even know what it has? spool, locker, tt? I would guess the sound is either a locker or a spool.
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10-26-2009, 10:39 AM #4
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10-26-2009, 10:46 AM #5
- Join Date
- Sep 2009
- Location
- Nebraska
- Posts
- 151
Pewter- 2002 Camaro SS
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10-26-2009, 10:47 AM #6
All I can think is that it is sounding like a locker.
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10-26-2009, 11:48 AM #7
Ok, y'all may as well be talking Chinese! I have no idea even what a spooler or locker is. My knowledge of rearends is very limited. My understanding of a limited slip rearend means that there are clutches that allow one side to rotate while the other side 'slips'. Thank each of you for your input. I will contact Midwest Chassis and ask what internals are there.
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10-26-2009, 11:57 AM #8
- Join Date
- Jan 2006
- Location
- Shepherd, Michigan
- Age
- 36
- Posts
- 11,770
blacker than wesleysnipes- 98' trans am
midwest offers different style internals so you may not get far.
here
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10-26-2009, 12:10 PM #9
Thanks Shady. That locker definition made sense. I don't think it's a locker. The tires never chirped while negotiating a turn and don't now. It really sounds and feels like the limited slip clutches are binding inside the rearend instead of 'slipping' like they should be. I looked for the receipt that the previous owner shipped with the car, but it wasn't there. I have looked under the car and it truly is a Midwest Chassis 9". I will contact MC and ask some questions. Thanks man.
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10-26-2009, 12:44 PM #10
- Join Date
- Sep 2009
- Location
- Nebraska
- Posts
- 151
Pewter- 2002 Camaro SS
Almost have my money on a locker. Just seems what you are explaining are symptoms are of a locker.
Jack up the rear of the car so the wheels are off the ground and mess around with it. If the wheels spin the same way no matter what = spool.
If the spin opposite of each other = some type of limited slip
Gives you at least a little better clue. Post the sounds you get while doing this.
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10-26-2009, 03:02 PM #11
Thank you Klug23. Going to get the oil changed soon along with the rear diff fluid. I'll check the way the wheels spin when they have it up on the lift. Thanks.
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10-26-2009, 03:08 PM #12
sorry not tryin to steal this thread quick question. it seems like my car has the same problem. it is possible though? i have a stock 10 bolt. sorry about the steal and good luck with your problem hercules
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10-26-2009, 04:47 PM #13
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10-26-2009, 06:22 PM #14
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10-26-2009, 06:27 PM #15
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10-26-2009, 06:31 PM #16
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10-26-2009, 08:51 PM #17
- Join Date
- Sep 2009
- Location
- Nebraska
- Posts
- 151
Pewter- 2002 Camaro SS
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10-27-2009, 03:13 AM #18
- Join Date
- Apr 2008
- Location
- Madison, WI
- Posts
- 7,006
1999 Formula WS6 M6-sold- 2001 Silverado Z71
Just wanted to correct the misinfo. no biggie
Probablly a lot of aftermarket rear end use clutch type and I believe all 98 f-bodies used the auburn clutch posi. 99 to 2002 got the Torsen gear driven posi which will spin like a open diff if you have both wheel in the air.
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10-27-2009, 07:11 AM #19
- Join Date
- Sep 2009
- Location
- Nebraska
- Posts
- 151
Pewter- 2002 Camaro SS
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10-27-2009, 09:21 AM #20
Hey guys, thanks for all the input. I just received word from Midwest Chassis that the rearend in my car is a Strange nodular S case, daytona support, 1350 series yoke, and a Truetrac diff unit. The advisor told me that the Truetrac was clutchless and that I should check the axle bearings and the caliper rotor clearances to see if they are rubbing. Caliper rotor clearances seems fruitless as the sounds started out of the blue. If it was a clearance issue, the sounds would have been there from the git go. Looks like I need to focus on the axle bearings. Sorry for putting y'all through this guessing game. Soooo, is the Truetrac diff unit a limited slip unit?????
Thanks,
Don
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