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81 Differential - How strong is it?

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Old Mar 23, 2005 | 06:19 AM
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Default 81 Differential - How strong is it?

I'm planning on putting around 550 ft/lbs of torque into my differential, and I want to know if this thing can take it. I'm going to be pulling it out to fix the leaks, maybe replace the yokes, carrier and gears. I just want to know what the limit is on the housing, frame, etc.

Last edited by Ben Taylor; Mar 23, 2005 at 06:21 AM.
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Old Mar 23, 2005 | 08:21 AM
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It all depends on what tires you are going to use, slicks will most likely break it at 550ft/lbs, street tires will spin so it will be OK
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Old Mar 23, 2005 | 10:26 AM
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You can run the cast iron diff and it will bolt up to your aluminum wing. You will have to change a few other things though like your 1/2 shafts, strut rods and spindle flanges.
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Old Mar 23, 2005 | 12:06 PM
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Originally Posted by Van Steel
You can run the cast iron diff and it will bolt up to your aluminum wing. You will have to change a few other things though like your 1/2 shafts, strut rods and spindle flanges.
Hahah.. a few "expensive" things.
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Old Mar 23, 2005 | 01:06 PM
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Originally Posted by tersian
Hahah.. a few "expensive" things.
It sure can add up. $275 for 2 new shafts. I'de recommend adjustable strut rods. $119 Spindle Flanges i think are like $80 each x 2. Plus you'll need a diff rebuild w/gears and side yokes and not to mention a cast diff. Problably $1300 - $1400.
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Old Mar 23, 2005 | 05:09 PM
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You coming to Carisle this year Dan?
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