Wheel spacers good or bad idea?

This. Other than looks, there really is no functional reason to use spacers. You are just increasing your scrub radius

One question. Why do you want them?

 

Its no different than buying aftermarket wheels with offset.
Sometimes you need clearance to keep the tires from rubbing the UCA. spacers are cheaper than a set of wheels

 

Correct. OP didn't say why they want them (clearance, looks, etc). If their tires clear the UCA fine right now, why add spacers except for the "look"

 

Kinda a vague question from OP.

If the safety is a concern then the answer is no in my opinion

 

The main risk is from people that don't know how to put down the impact gun and use a torque wrench w/thread-lock to install a brand name (quality) spacer.

So yeah... idiots can f**k up your truck and endanger others more easily than their normal task of improperly tightening lug nuts. If you need something absolutely dummy-proof then do not use wheel spacers.

 

I wouldn't make another guy mess with them, like if I had a regular mechanic working on my vehicles

But for a DIY guy I dont see a problem

Pro tip: skip the loctite, it just gums up the factory threads and makes more work to clean them up. If loctite isn't needed to keep regular wheels tight then it isn't needed to keep hub-centric spacers tight. We're talking 6 proper tapered lug-nuts designed to hold a wheel on. At 85 lb/ft they aren't going anywhere

 

I would only add that when you rotate tires to re-torque the lugs mounting the spacers to the spindles/hubs/drums if you don’t use the loctite.

 

Sure checking is fine, no argument.. but consider this.. if they are loosening up then something is very wrong

I'm not trying to argue, just saying that wheel nuts shouldn't be backing off ever. Loctite or no loctite. If loctite was the only thing keeping lug-nuts from loosening up then we'd have wheels coming off all over the place

I'm not saying don't check them. Just saying if you find them somehow loosening up on their own then you've got bigger problems. Problems that thread locker won't solve

 

Wheels are rotated every 5k. Spacers may not come off for long periods.

I've run Spidertrax 1.25" spacers for 5 years with no problems. 35s and lots of offroad time. Forget the skeptics.