Joseph P. Indusi Posted April 27, 2012 Share Posted April 27, 2012 I plan to put tubeless tires on a 1948 Buick Special with the original wheels. I have done this before on a 1953 where I mounted bias ply tubeless 7.60 by 15 whitewalls. i seem to remember that the rubber valve stem diameter was larger than the standard rubber valve stem of about .45 inches. I believe the only other size rubber valve stem has a diameter of .625 inches. Does anyone know if this is what I should use?Joe, BCA 33493 Link to comment Share on other sites More sharing options...
Pete Phillips Posted April 27, 2012 Share Posted April 27, 2012 Joe,I'm not conversant on the diameter in fractions of an inch, but in the auto parts stores around here, there are four types of rubber valve stems available: 1. Fat base and short stem; 2 Fat base and long stem; 3. Narrow base and short stem; 4. Narrow base and long stem. I mostly work on Buicks from the 1940s, 1950s, and 1960s, and they almost always take the fat kind with a long stem, particularly if they have to stick up through a full wheel cover or a trim ring. Just look at the width of the hole in your wheel, and then look at the width of the available valve stems--it will be fairly obvious which ones will fit and which ones won't--you can judge it by sight if you look at the two types together.Pete Phillips, BCA #7338 Link to comment Share on other sites More sharing options...
Joseph P. Indusi Posted April 27, 2012 Author Share Posted April 27, 2012 Thanks Pete. As I recall on the 1953 Buick Special the valve stems looked fatter than the regular ones used on the more modern cars. The fatter ones are marked .625" diameter so that must be right.Joe, BCA 33493 Link to comment Share on other sites More sharing options...
Paul Falabella Posted May 5, 2012 Share Posted May 5, 2012 While on the topic, I am replacing the tires on my 55 Roadmaster and want to paint the wheels. Should I leave the valves on the wheels or will the shop mounting the new tires have suitable replacements? Link to comment Share on other sites More sharing options...
old-tank Posted May 5, 2012 Share Posted May 5, 2012 While on the topic, I am replacing the tires on my 55 Roadmaster and want to paint the wheels. Should I leave the valves on the wheels or will the shop mounting the new tires have suitable replacements?Replacements have never been a problem locally. When you have the old tires dismounted to paint ask in case they have to order.Willie Link to comment Share on other sites More sharing options...
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