How to Avoid using bad flywheels for an LLV postal truck
When replacing flywheels on an LLV (Long Life Vehicle), which is a postal truck used by the United States Postal Service (USPS) and made by Grumman, always look for the quality of the new flywheels ordered. Just because they're new doesn't mean they're good. The ring gear can sometimes be welded off-center to the plate, which will make the starter teeth grind the new flywheel. If you don't want to replace the fly wheel a second time, watch this video to see how to spot check them.