My aversion to the 1.3" spacers is similar to Roadie, it's not that the spacers have proven to be of low quality or poor workmanship, but it's a question of risk management. We've already covered the risk of grinding down the rear studs and verifying clearance and checking and re-checking torque, but I have a serious issue with their lack of a wheel-centric lip for properly aligning the wheel to the spacer. The average person may not know how carefully you need to work with the wheel to ensure it's aligned as closely as possible. I have seen misaligned wheels on much lighter and more nimble vehicles bust lugs, and in a few cases, cause serious accidents. Messing up your wheel installation isn't just a question of wheel vibration, it's exceedingly dangerous. No matter what, when you mod, you induce the risk of more danger - but a few changes to these spacers to make them more like Fred's would decrease the risk significantly.
Yes, all of these issues are a burden of the installer/user, but these risks are very dangerous for the average individual. For most of the crowd here these aren't issues, you're not average modders - you've done serious work and probably have learned the pain of incorrect installation in past and probably insignificant jobs. Many amateurs are coming onto the scene and looking at your rigs and want to duplicate your great work. The 1.3" spacer question is about those people.
Pine Barrens Wheelin!
:thumright: for properly-installed eBay spacers!
So I think it'll be fine for now. I'll definitely take care of it at the next oil change tho.