AAM Axle differences (GM & Dodge)
11-11-2009, 07:00 PM
#31
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11-12-2009, 11:04 AM
#33
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In my experience they are unpredictable at best. They always seem to do nothing when needed, and when not needed they lock up. They are the worst on snow/ice, espically if on a off camber forest service road, the *** end always wants to walk...
I get better traction in my Dodge with the helical LSD than I did with a G80, and thats with at least 50% more torque.
I get better traction in my Dodge with the helical LSD than I did with a G80, and thats with at least 50% more torque.
11-12-2009, 07:23 PM
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Jim O
11-12-2009, 08:29 PM
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GM AAM 11.5 and Dodge 11.5 AAM are basically the same. Dodge has the tone wheel on the carrier and GM uses vss signal from the t-case or trans to determine speed. As far as the wonderful G80 unit from GM I would be hesitant to slip one of these into my truck. To many working parts and has anybody ever seen and old K5 chevy blazer with holes in the diff cover from the G80 blowing up? Guess what same design just bigger for the 11.5.
11-13-2009, 06:58 AM
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I had an 06 dura with the G80 locker, I really liked that locker, worked perfect, it would lock solid going through a deep ditch. Dodge limited slip is fun on the street, but worthless in the dirt.
12-05-2009, 01:57 PM
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XL8...,
Going with a large axle is only an 'upgrade' if its REQUIRED. In other words, if you're heavily modifying the engine/trans and need the larger unit then its a good idea. If its just for the heck of it to say you have a larger axle then its a waste. If I remember correctly the 11.5's have a slightly strong set of shafts in them (slightly larger body diam with the spindle ends turned down for clearance but I believe the splines are the same).
If it were me, I'd wait til I HAD to do it. I think the prop shaft will need to be changed too right?
Going with a large axle is only an 'upgrade' if its REQUIRED. In other words, if you're heavily modifying the engine/trans and need the larger unit then its a good idea. If its just for the heck of it to say you have a larger axle then its a waste. If I remember correctly the 11.5's have a slightly strong set of shafts in them (slightly larger body diam with the spindle ends turned down for clearance but I believe the splines are the same).
If it were me, I'd wait til I HAD to do it. I think the prop shaft will need to be changed too right?
12-06-2009, 12:41 PM
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My 08 Dodge and my 07 Chevy have limited slip and G80 locker respectively. They both work the same in my book, nothing to write home about with either one.
Just curious I have a spare 03 Dodge 11.5 rear end, is this a direct bolt up on 03-current Dodges and also are there any internal differences through the years?
Just curious I have a spare 03 Dodge 11.5 rear end, is this a direct bolt up on 03-current Dodges and also are there any internal differences through the years?
12-07-2009, 11:00 AM
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In my experience they are unpredictable at best. They always seem to do nothing when needed, and when not needed they lock up. They are the worst on snow/ice, espically if on a off camber forest service road, the *** end always wants to walk...
I get better traction in my Dodge with the helical LSD than I did with a G80, and thats with at least 50% more torque.
I get better traction in my Dodge with the helical LSD than I did with a G80, and thats with at least 50% more torque.
The G80 in my GMs was very predictable. I always knew exactly when it would lock and what to expect.
The LSD in my Dodge is easily the biggest POS I've ever used. It never acts the same way twice,and getting it to work takes an act of congress.
If I were to buy a new Dodge today,I wouldn't waste the money on the "anti-spin" option.
12-07-2009, 01:27 PM
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The Dodges arent actually Limited Slip and can be 'burned up' - of course anything can be damaged under the 'right' circumstances.
If you go back 10 years or so the G80's could be a bit unpredictable (before carbon discs were used). If your's seems to be 'unpredictable' then complete a flush and fill of the rear end (not just a simple drain and fill).
If you go back 10 years or so the G80's could be a bit unpredictable (before carbon discs were used). If your's seems to be 'unpredictable' then complete a flush and fill of the rear end (not just a simple drain and fill).
12-08-2009, 09:28 AM
#42
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Be sure to torque carrier bolts each time you change diff fluid. Mine spun the carrier race at 185k. I had to replace the entire rear diff. The housing was badly grooved from the spinning eace.
Cost was about 2500 doing it all myself.
My carrier bolts had lost there torque. They had maybe 30-50 lbs of torque on them allowing the race to spin.
Carey
Cost was about 2500 doing it all myself.
My carrier bolts had lost there torque. They had maybe 30-50 lbs of torque on them allowing the race to spin.
Carey
12-08-2009, 10:08 AM
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Something needs to be clarified. The G80 won't initially lock over 20mph. Once the G80 is locked though,it'll stay locked way past 20mph.
12-08-2009, 03:07 PM
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SundayMoney-
Correct. Just wanted to make sure someone did not expect a G80 equipped axle to initially engage while driving over 20 or 25 mph.
Carey-
The differential bearing caps dont actually clamp down the differential side bearings. Its an extremely tight 'slip fit'.
Correct. Just wanted to make sure someone did not expect a G80 equipped axle to initially engage while driving over 20 or 25 mph.
Carey-
The differential bearing caps dont actually clamp down the differential side bearings. Its an extremely tight 'slip fit'.
12-08-2009, 11:34 PM
#45
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SundayMoney-
Correct. Just wanted to make sure someone did not expect a G80 equipped axle to initially engage while driving over 20 or 25 mph.
Carey-
The differential bearing caps dont actually clamp down the differential side bearings. Its an extremely tight 'slip fit'.
Correct. Just wanted to make sure someone did not expect a G80 equipped axle to initially engage while driving over 20 or 25 mph.
Carey-
The differential bearing caps dont actually clamp down the differential side bearings. Its an extremely tight 'slip fit'.
Carey