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Old 04-22-2013, 05:14 PM
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who makes "summit racing" ring and pinion gears

Any idea who makes these for summit?

Thanks

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Old 04-22-2013, 06:27 PM
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I wouldn't worry about who makes them. They usually make noise. Most of the cheap gears make noise. If you want a quiet gear then get a good brand and pay the extra money for the extra quality.
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Old 04-22-2013, 07:18 PM
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Sorry, not sure who makes them but my understanding is gear noise has more to do with how their cut, angels ect. In which case a noisy gear may actually be stronger than a quiet gear.

I did a LOT of research on gears before I bought mine. You will find a person who says X brand sucks... Then another that says X brand is the best. From what I found Gear Motive Performance line was the best value with the fewest complaints per dollar spent.
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Old 04-22-2013, 07:41 PM
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Motive Gear made in Italy is good. Motive Gear made in Korea is junk.
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Old 04-22-2013, 07:49 PM
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So how do you know where they are made? Mine said nothing on the box or gears.
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Old 04-22-2013, 09:32 PM
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Quote:
Originally Posted by big gear head View Post
Motive Gear made in Italy is good. Motive Gear made in Korea is junk.
X2,It usually says on the Motive box which one they are,I have literally set up hundreds of Motives in the last 30 years,( have a rear end shop) have only had maybe 5-6 sets of Motive's make noise,although more are making noise than ever before,anybody that does a lot of gears will tell you the same thing,anymore it's a crap shoot.
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Old 04-22-2013, 10:18 PM
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Spend a little extra now and get a good set. It will save you in the long run.
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Old 04-23-2013, 04:50 AM
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That's a hard question to answer. I have heard Richmond made them for Summit as well as GM. I've also heard that they were made in Korea and China (what isn't these days). You will read as many likes as dislikes about Summit gears. My guess is that the complaints were because they were not set up correctly. Good Luck.
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Old 04-23-2013, 08:32 AM
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From a gear standpoint; the quick and dirty way to build strength is with a chunky tooth form (If you want a very long and wordy description from an engineer; I'll get one). However, (2) things contribute noise: Tooth-to-tooth spacing errors and vibration. These also build heat and cost power.

If you build a better helical design, you can have less mass, equal strength, less noise and heat generated.

I think what's killing these cheaper R&P sets is the lack of consistency in the material and the heat treat. Parts will distort in heat treat and if you don't account for it properly in the design and manufacturing phases; this is the result.

The best R&P sets are/were typically made in Italy, Spain and the US. Not to say a Korean set CAN'T be good; all this is on a bell curve. All the mfg's will have pieces that stray to the outer edge of the range; however the QC and attention to detail along with following the print...you'll have a more consistent product, more of the time. Some of the Asian stuff will be spot on and if you don't mind a little noise or the possibility of having to R&R the gearset, the small gamble might be worth it. I don't like doing ring and pinion sets, so I opt for OEM gears or a quality aftermarket product like Richmond (before Regal-Beloit sold them), or US Gear.
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Old 04-24-2013, 03:50 AM
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Thanks for all the responses everyone. the reason I ask is I bought a rearend rebuild kit from summit which came with a ford racing posi unit as well as gears and all the bearings and seals to rebuild the unit. I'm just trying to decide now if I should return the gears for a brand name set.
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Old 04-24-2013, 06:11 AM
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If it has a Ratech installation kit see if you can return it too. Summit kits are not much good. Tom's Differentials and Randy's Ring & Pinion have much better kits.
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Old 04-24-2013, 09:04 AM
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The "house brand" gear set I got from Quick Performance was Yukon and their install kit had all Timkin bearings. They even told me the axles I bought were unbranded "Moser" axles.

Russ
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Old 04-27-2013, 08:53 AM
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Richmond will always be in my pumpikins, they go above and beyond IMO. Take a licking and keep on ticking. If you want the quietest gears get OEM.

peace
Hog
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Old 05-26-2013, 06:19 AM
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I don't know how I missed it the first time I looked over the gears but Excel is stamped on the ring gear. I'm assuming that means Richmond excel series.
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Old 06-13-2013, 06:21 PM
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Thanks for the input everyone. I just got the motive set delivered today. Made in Italy. Summit must have had this sitting on their shelf for quite awhile since the manufacture date on it is 10/2/10 haha. I will be ordering the yukon master rebuild kit this week and hopefully installing the carrier and gears next weekend.

Thanks again for the help.
Shane
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