just curios, is it mileage or age that gets them? I put mine up and see some tiny weathercracks all over, it's 2001 with 83,000 miles
The constant flexing at he bottom of the airspring creates and increases the depth of these cracks. Eventually they will leak so it will depend to some extent just how much flexing these airsprings do.
If your airsprings are just showing fine lines/cracks you could try inverting them so that the current TOP and unflexing part of the airspring is placed at he bottom. This (IMHO) should give you almost the same airspring lifetime again. I have NOT
tried this myself. This is only an assumption on my part. However I have been told that the airsprings on Classic and P38 RRs are the same at both ends.
As most of the "wear" or flexing takes place at the bottom it seems logical that inverting the spring will extend the lifetime of the original spring.
FWIW, you can also swap the height sensors from side to side to use the otherwise unused portion of the sensor. I have done this to fix a faulty sensor. An EAS recalibration will probably be necessary though.