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| 3.7 R&P teeth?? http://auszookers.com/forum/viewtopic.php?f=37&t=37832 |
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| Author: | dono1 [ Wed Dec 19, 2012 11:39 am ] |
| Post subject: | 3.7 R&P teeth?? |
How many teeth are on the crown wheel and pinion on a 3.7 sierra diff? I have a set of 3.7's and 3.9's but I'm not sure which is which (they are all in a parts bin I got with my old car). Thanks in advance. Donny. |
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| Author: | tanshi [ Wed Dec 19, 2012 11:43 am ] |
| Post subject: | Re: 3.7 R&P teeth?? |
http://auszookers.com/forum/viewtopic.p ... &view=next |
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| Author: | Reubs [ Wed Dec 19, 2012 12:02 pm ] |
| Post subject: | Re: 3.7 R&P teeth?? |
Count the teeth and divide the numbers to determine the ratio... |
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| Author: | dono1 [ Wed Dec 19, 2012 12:14 pm ] |
| Post subject: | Re: 3.7 R&P teeth?? |
Thanks for the help, are the pinion teeth the same in both?? |
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| Author: | tanshi [ Wed Dec 19, 2012 12:21 pm ] |
| Post subject: | Re: 3.7 R&P teeth?? |
they are the same number but different sizes i believe |
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| Author: | dono1 [ Wed Dec 19, 2012 12:24 pm ] |
| Post subject: | Re: 3.7 R&P teeth?? |
Great! Which one will go with the 3.7 the larger pinion or the smaller pinion?? |
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| Author: | christover1 [ Wed Dec 19, 2012 4:20 pm ] |
| Post subject: | Re: 3.7 R&P teeth?? |
In my old cars a lot of r & p were marked to show what they match to. Not checked zook stuff |
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| Author: | jono165 [ Wed Dec 19, 2012 7:33 pm ] |
| Post subject: | Re: 3.7 R&P teeth?? |
I would think that larger pinion should go with the crown wheel that has coarser teeth which is the 3.7:1 pair. |
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| Author: | Fatzook [ Wed Dec 19, 2012 9:22 pm ] |
| Post subject: | Re: 3.7 R&P teeth?? |
You shouldn't mix and match your pinion and ring gears. They are a matched pair, and are worn in together. Mismatched R&P's canbecome noisey, and even fail earlier than otherwise expected. |
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