Tires

Retreading tires for use on drive axles and trailer axles is very common in the trucking industry. Finding a commercial tire dealer that provides this service should not be too difficult. Try the dealer locator on our commercial tire website www.goodyear.com/truck. If you have retreadable casings, the retreader can either retread the tire casings you provide to him or he can make you an offer to buy your casings from you.

Yes. Goodyear no longer makes the G647 RSA tire and the G647 RSS is very similar. This tires ride properties should be very similar to the RSA tire.

Goodyear does not state a "uniform" replacement age for tires because there are many conditions that dictate a tire's safe and effective life span. Some factors that influence how long a tire will last are:

Usage per year - more frequent usage will result in longer life
Vehicle storage practices (6 months loaded with little or no rotation is not good!)
Usage in warmer climates can also negatively impact a tire's overall life due to greater extreme ozone exposure

A tire should be replaced when cracks are more than 2/32 " deep or internal components of tire (steel or fabric body plies) are visible. However, the tires in question should be inspected by an authorized Goodyear dealer to determine whether or not they are serviceable.

Although your question is about consumer tires, the week and year of manufacture is the same no matter what kind of tire is at issue. In your case, the 312 indicates that the tire was built during the 31st week of 1992. In early 2000, the date code system was changed to a 4 digit code (MMYY). In other words, 1203 would mean that the tire was produced in the 12th week of 2003. Tires (particularly commercial truck tires with multiple retreads) were in service for so long, it was often not possible to determine if they were 1 year old or 11 years old with the old 3 digit system. The new system designates the decade as well as the final digit of the year.

I am not 100% certain what you are asking with your first question but, I will assume you mean what kind of rotation pattern should be used. If that is the case, my answer is to move the tires from the forward axle to the rearward axle (and visa versa) and to reverse the direction of rotation. Although many fleets do not do this with their drive tires, it does even out the wear between the two drive axles and cleans up any irregular wear that may have begun. Regarding the second question, that is nearly impossible to answer unless I know the type of service the truck is running. Waste pick-up vehicles get a lot fewer miles out of their drive tires than a line haul tractor.