Question to all Vision 19.5 wheel users
I was doing my pre-camper load up tire pressure ,check lug nuts torque etc. when I came to 2 lugs that didn't seem right. I was not able to get them to spec's. As it turned out it appears that the sho...
Forum Discussion
Tamnative (Took me a second to figure out that you are a native of a nearby mountain!)...
A small recess machined around each stud hole on the back side of the wheel is not uncommon for aluminum SRW truck wheels. My stock 3/4 ton GM wheels have a similar recess. Rather than try and explain why in words, I found a few photos online that more succinctly explain what the recess is there for...
These spring retaining washers hold the rotor on during vehicle production. There is usually only one or at most two mounted per rotor. They are not mounted on all 8 studs (or all 6, or 5, as the case may be) They are also not necessary in the vehicle's function or service, but if a fully flat faced wheel is mated to a rotor where these production rotor retaining washers have not been removed, then that can present a wheel vibration problem, along with accelerated pad and rotor wear.
Since what a tire shop employee does cannot be controlled (something you are quite aware of), the wheel manufacturers began machining a recess into all the stud holes, so that no matter if the spring retaining washer is removed or not, and no matter which stud it happens to be on, and no matter which way the wheel is clocked, there will be no interference from the washer that would keep the wheel from being flat against the rotor mounting plane.
I think at the very least someone at Vision could have taken the time to explain this to you when you asked.
A small recess machined around each stud hole on the back side of the wheel is not uncommon for aluminum SRW truck wheels. My stock 3/4 ton GM wheels have a similar recess. Rather than try and explain why in words, I found a few photos online that more succinctly explain what the recess is there for...
These spring retaining washers hold the rotor on during vehicle production. There is usually only one or at most two mounted per rotor. They are not mounted on all 8 studs (or all 6, or 5, as the case may be) They are also not necessary in the vehicle's function or service, but if a fully flat faced wheel is mated to a rotor where these production rotor retaining washers have not been removed, then that can present a wheel vibration problem, along with accelerated pad and rotor wear.
Since what a tire shop employee does cannot be controlled (something you are quite aware of), the wheel manufacturers began machining a recess into all the stud holes, so that no matter if the spring retaining washer is removed or not, and no matter which stud it happens to be on, and no matter which way the wheel is clocked, there will be no interference from the washer that would keep the wheel from being flat against the rotor mounting plane.
I think at the very least someone at Vision could have taken the time to explain this to you when you asked.
