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Re: GM 12 bolt Rebuild
I installed a set into a 12 bolt and from opening the box I started questioning the product. The compound markings from the factory were way more towards the toe side than I set up (not a racing application). I did get it exactly as they sent it with the BL at .008 that was scribbled on the gear set. All new bearings went in also. Started out great, no noise, broke it in all was good. After about 25 miles on it started getting noise on decel. Tore it apart and the outer pinion race grenaded itself. Replaced all bearings with Timken's and started making more noises and they were not consistent at all not same RPM's, speeds or gear selections.. Tore back apart, Timken's were perfect. Started digging and found that the gears are made in India and they are making them with a harder material and that they can make noise. Read a bunch of threads and found professionals with the same issues. Now I am not bashing Richmond Gears at all. The set I installed has over 2K on them and the guy is happy with it and drove it on a 1600 mile trip from AZ to TN with zero problems. I hate gear noises and that would drive me crazy driving it.
For me, I have used Motive Gears and I use Open Carriers and have had no problems or noises. I suggest doing a lot of research on the gear set you want to install and make phone calls to get to your comfort level. It is a lot of money to get an axle rebuilt and you want to ensure that it is to your satisfaction. Try looking at US Gear and TomsDifferentials.
Lastly,
Is the original poster installing the gears or having them installed?
Smitty
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