Finally got dead quiet 4.10's in my 10 bolt
05-25-2010, 10:12 AM
#21
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All I've heard is "All 3.42< wine past 60" from backyard mechanics, such as myself. They clearly state that a wine is inevitable, despite your efforts. But experienced installers say otherwise...could it be that these "backyard mechanics" have not been properly compensating the preload. I tip my hat to you for accompishing a successfull install with the result being a silent set of 4.10's...even if it be by the intermingleing of stroke of luck and ingenuaty...
05-25-2010, 10:18 AM
#22
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To the original poster......if your rear is still quiet and running strong, then consider yourself lucky because 99.99% of the time, folks in your situation would be experiencing 4:10 disaster.
02-14-2014, 05:52 PM
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Gear noise is a combination of things. The set up can be right but folks need to understand that not every gear set was cut properly. There are alot of folks out there that do not know how to identify a set of improperly cut gears. A good company will thoroughly lap a pattern into the teeth before it ever leaves the machine shop. I'm not talking about the gears that are lapped just a little with a small pattern :cough: Richmond :cough: I could go on all day about this but nobody would listen to me anyway. I've set up and seen others set up several fbodys with 4:10 gears and not whine a lick. A properly cut set of gears and a good installer can keep 4:10, 4:56, 4:88 ect...ect...quiet all day long. Noisy gears are a condition of improper setup, improperly machined gears or a combination of both. Just because it's a 7.5 10 bolt and has a 4:10 gear in it does not mean it's just going to whine.
I'm new here and you seem knowledgeable. can you teach me how to recognize these quiet gears or do you know of certain brands that are inherently quiet? I live near Waterford Michigan and hear that the ring and pinion shop is a repeatable place. if it makes a difference, I plan on using a Chrysler 8.25.
thanks,
eric
02-15-2014, 08:21 AM
#27
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getting quiet gears is not that hard with a 7.5. Don't use Richmond gears is the first step. The seconded step is taking your time and doing it properly. I have set-up quit a few 10 bolt rears and only one was noisy......And it was a richmond gear. Motives or used sets of oem is what I recommend.
I learned and taught myself years ago after getting someone to set up a rear in my 78 Monza v8 car. I thought after they did it and it was noisy I can sure as hell do it and make it noisy myself. The only rear that has been noisy since is that dam richmond gear rear. I bought a used fab9......I took it apart before putting it in my car. Checked the pattern and all looked good........except it had richmond gears. I knew it was gonna make noise and it does. I'll fix it with a set of Motives one day.
I learned and taught myself years ago after getting someone to set up a rear in my 78 Monza v8 car. I thought after they did it and it was noisy I can sure as hell do it and make it noisy myself. The only rear that has been noisy since is that dam richmond gear rear. I bought a used fab9......I took it apart before putting it in my car. Checked the pattern and all looked good........except it had richmond gears. I knew it was gonna make noise and it does. I'll fix it with a set of Motives one day.
