Valve Stem Issue.....

[abc40kids]

So I'm upgrading to G rated tires and I ordered metal valve stems rated at 110psi. The problem is the rubber on the back of the stem wont go thru the valve hole on the wheel...

I also have rubber valves with metal sleeve rated at 80psi that fits... The E rated tires that came on my 5er were rated at 80psi so I'm thinking my G rated tires at 80psi will be much better than the E rated at 80psi. I'm not really wanting to go even 100psi on these stems rated at 80psi. What do you think....

I do have some other metal stems on the way today but they will probably be the same rubber. They make a 100psi rubber stem but once again the base is too wide. I did check my wheels and they are rated at 110psi.

[laknox]

First question; are your =rims= rated for 110 psi? If you're only upgrading tires, your rims may not handle the G's, hence the difference in stem hole size. Rims should be stamped on the back side of the bead or in the "valley" inside, which means you'd have to break a tire down to check.

Lyle

[Allworth]

You might check the online store at 4-Wheel Parts

[johntank]

A few years ago when I replaced my rubber vale stems with metal vales (Milton) they came with two sizes of grommets as they called them one for a 5/8" hole (large) and a smaller one for a .453" aprox. a 7/16" hole. This Might help you get the ones you need.

[RustyJC]

IIRC, there are two sizes (throat diameters) of metal valve stems. Sounds like the one you have is too big. Without doing an internet search, my recollection is that the smaller size is just under 1/2" diameter (something like 0.455" or so) - what diameter are the ones you have?

Rusty

[ford_truck_guy]

abc40kids wrote:
So I'm upgrading to G rated tires and I ordered metal valve stems rated at 110psi. The problem is the rubber on the back of the stem wont go thru the valve hole on the wheel...

I also have rubber valves with metal sleeve rated at 80psi that fits... The E rated tires that came on my 5er were rated at 80psi so I'm thinking my G rated tires at 80psi will be much better than the E rated at 80psi. I'm not really wanting to go even 100psi on these stems rated at 80psi. What do you think....

I do have some other metal stems on the way today but they will probably be the same rubber. They make a 100psi rubber stem but once again the base is too wide. I did check my wheels and they are rated at 110psi.

I do not see a problem with airing them to 80 max... but that would lower their carrying capacity.. I would try to get the proper metal stem before lowering the pressure.
Per the Goodyear site.. at 80 psi the max load is only 3042# versus the 3750 @ 110psi