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How to test pinion drag torque

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Old Dec 16, 2002 | 06:38 PM
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Default How to test pinion drag torque

After installing the pinion gear and pinion nut how do I test for this drag torque. Is it a matter of just putting a inch pound torque wrench on the pinion nut and watching how many inch pounds it take before the pinion gear starts turning?
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Old Dec 16, 2002 | 06:42 PM
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Default Re: How to test pinion drag torque

You should measure the torque WHILE turning the pinion. The starting torque will probably be a little higher.

<small>[ December 16, 2002, 06:43 PM: Message edited by: Gary Z ]</small>
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Old Dec 17, 2002 | 01:12 PM
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Default Re: How to test pinion drag torque

OK. Did I get the method of measuring right?
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Old Dec 18, 2002 | 10:32 AM
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Default Re: How to test pinion drag torque

Yes! You are doing it right. Just turn it and watch the dial.
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Old Jul 2, 2006 | 11:31 AM
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Bringing this one back to life again.

Been working on my rearend and have a question about this procedure and how others do it.

1st, it is damn near impossible to find a beam type torque wrench that reads in in-lbs any more. Where are guys getting these tools ?

2nd, if you're not using a beam type wrench, what are you using and how are you using it ?

Any replies would be greatly appreciated.
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Old Jul 2, 2006 | 12:17 PM
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I picked my in-lb torque wrench from Hazett, but I also seee that snapon , proto and Craftsman carry it also.
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Old Jul 2, 2006 | 01:10 PM
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I looked at Craftsman and didn't see one that reads in in-lbs - is yours beam type or dial type ?
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Old Jul 2, 2006 | 01:36 PM
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The Hazett is Beam and the Snapon is Dial
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Old Jul 2, 2006 | 03:21 PM
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What sort of graduations are on the Hazett ? I have a beam type here but it reads in 25 in-lb increments
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Old Jul 2, 2006 | 03:22 PM
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Snap on is the best one to use with the dial since you can set 0 and set the load.
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Old Jul 2, 2006 | 03:31 PM
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Originally Posted by Scott@DrivelineSolutions
Snap on is the best one to use with the dial since you can set 0 and set the load.
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Old Jul 3, 2006 | 09:25 AM
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This is the one I use!

http://www.amazon.com/gp/product/B00...ance&n=3375251

Have to use 2 adapters to adapt from 1/4 inch drive to 1/2 inch but it works fine. Amazon was the only place I could locate one for sale at a reasonable price.
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