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Anyone make a 3.73 ratio ring and pinion for the 8 3/4 #82735
07/01/08 03:37 PM
07/01/08 03:37 PM
Joined: Apr 2005
Posts: 102
Round Rock, Tx
PlumCrazyChris Offline OP
member
PlumCrazyChris  Offline OP
member

Joined: Apr 2005
Posts: 102
Round Rock, Tx
Does anyone know if and who makes a 3.73 ratio ring and pinion for the 8 3/4 rear? 3.91 is just a little too much and 3.55 is a little to little, if you know what I mean.

Thanks


VP of Mopar Muscle Cars of Austin
70 Challenger
www.mopar.org
Re: Anyone make a 3.73 ratio ring and pinion for the 8 [Re: PlumCrazyChris] #82736
07/01/08 03:38 PM
07/01/08 03:38 PM
Joined: Apr 2008
Posts: 1,195
Snowing in the north!
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Dart 340 Offline
moparts member
Dart 340  Offline
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Snowing in the north!
Yes they do, I am not sure exactly the ratio but it is a 3.7? :1 I think it's for a 489 rear.

Re: Anyone make a 3.73 ratio ring and pinion for the 8 3/4 [Re: PlumCrazyChris] #82737
07/01/08 03:43 PM
07/01/08 03:43 PM
Joined: Jan 2003
Posts: 25,885
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

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Posts: 25,885
Rio Linda, CA

Yukon makes the 3.73 ratio for all three 8 3/4" housings. (741, 742, 489)


The INTERNET, the MISinformation superhighway
Re: Anyone make a 3.73 ratio ring and pinion for the 8 3/4 [Re: PlumCrazyChris] #82738
07/01/08 03:44 PM
07/01/08 03:44 PM
Joined: Jan 2003
Posts: 666
Anywhere the British Secret Se...
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Moonraker Offline
mopar
Moonraker  Offline
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Posts: 666
Anywhere the British Secret Se...
3.73 are available through a lot of places now for the 3 most popular yolks(741,742,489) I'm pretty sure. I know Randys R&P sells them for sure and I have seen them numerous other places on the web. First and foremost I would check with Dr Diff, he is a board member here and his prices and service are among the best in the business. I'm sure he will chime in soon also.

Re: Anyone make a 3.73 ratio ring and pinion for the 8 3/4 [Re: Moonraker] #82739
07/01/08 04:09 PM
07/01/08 04:09 PM
Joined: Jan 2003
Posts: 449
Baltimore, MD
3
397STROKER Offline
super street
397STROKER  Offline
super street
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Joined: Jan 2003
Posts: 449
Baltimore, MD
Motive makes 3.73 for all 3 housings.

Re: Anyone make a 3.73 ratio ring and pinion for the 8 3/4 [Re: PlumCrazyChris] #82740
07/01/08 04:20 PM
07/01/08 04:20 PM
Joined: Jan 2003
Posts: 8,016
Polson, MT
DoctorDiff Offline
master
DoctorDiff  Offline
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Joined: Jan 2003
Posts: 8,016
Polson, MT
Motive Gear makes 3.73 ring and pinions for all 3 castings. All other brands are reboxed Motive Gears.

I have them in stock. E-mail me if you are interested.

Re: Anyone make a 3.73 ratio ring and pinion for the 8 3/4 [Re: DoctorDiff] #82741
07/01/08 04:34 PM
07/01/08 04:34 PM
Joined: Apr 2005
Posts: 102
Round Rock, Tx
PlumCrazyChris Offline OP
member
PlumCrazyChris  Offline OP
member

Joined: Apr 2005
Posts: 102
Round Rock, Tx
Thanks guys I figured it had to be available. Thanks for your input.

DrDiff, I'll get in touch with you soon.

Thanks!


VP of Mopar Muscle Cars of Austin
70 Challenger
www.mopar.org






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