I'm not sure how this is done, but I'd like to replace one of the valve stems (I think that's the name, it's the rubber tube that sticks out of the wheel)on my car, I had a tire replaced separately from the others a while back and it's got a different stem. Can I replace that thing with the tire still mounted(deflated of course)? Where do I get them?

Should I just remove the wheel, bring it to a tire place, tell them to replace the tire (it's worn anyway)and measure the stems on the other ones and tell them to replace it with one of the same length? Call me picky but it's been bothering me everytime I see that side of the car I have that ugly Firestone tire with three Cooper tires.

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1970 Chevy Custom El Camino (http://www.dreamelectric.com)
Originally was & will be Green Mist & Silver w/Green Vinyl Top (now black/black)
350ci/300HP 4bbl & Dual Exhaust
TH-350 - 2.73 Posi Rear - Factory PS, PDB, PW, Tilt, A/C & More
Also, check out my new 1987 Chevy Caprice Coupe! (http://www.dreamelectric.com/caprice.html)
Other Restorations - 1969 Snowco Trailer (http://www.dreamelectric.com/Snowco.html) & 1967 Sears Custom 600 Tractor (http://www.dreamelectric.com/1967Sears.html)

They are installed from the inside out. You don't have to completely dismount the tire but you would have to break the outer bead off the rim to access the valve stem for replacement.

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LS6, 4spd, 4.10, Cortez Silver
1 of 231 exported to Canada

Picking up where SilverLS6 left off, I'd say that for the cost of getting the stem changed and also feeling your pain from the mismatch, go ahead and get a new tire while you're at it. http://www.chevelles.com/forum/biggrin.gif http://www.chevelles.com/forum/biggrin.gif http://www.chevelles.com/forum/biggrin.gif

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Make it the way you like it, forget what the other guys say!
http://chevelles.com/showroom/alelcaminofront.jpg
http://www.angelfire.com/al4/alcamino64/index.html

Thanks for the help, yeah I'll just get a new tire while I'm there.