Community Forums

Incessant · 03-25-2018, 01:42 PM

I have ordered a 2018 Open Road (gas) 36 LA, expected in July.

I would like to order a Dually Valve Kit for the dealer to install during delivery.

Does anyone know the following -
1. Valve stem hole size for the steel inner rear wheels (possibly .625)
2. Valve stem hole size for the aluminum outer rear wheels (and presumably the fronts), (possibly 9.7 mm)
3. The outer (aluminum) hand hole size (2" or 1.75").

Thank you for your help.

curtsr · 03-25-2018, 01:59 PM

If you are talking about a valve extender to air up the inner tire, the 36la will come with one.

Incessant · 03-25-2018, 03:32 PM

Thank you for the information on the extensions.

I had extensions on my class c and didn't like them due to propensity to leak. The dually's, which i also had my class c, eliminate this possibility.

curtsr · 03-25-2018, 03:51 PM

Have mine for 2 1/2 years on my Phaeton with no leaks, Tiffin uses good extensions.

oldSarge98 · 03-28-2018, 11:14 AM

We've had our previously owned coach since August and all six tires with stock stems have remained perfectly inflated over the 2,000 miles and three seasons since we took possession. I've even added inflate through valve extension caps without affecting pressure retention. Those caps with and extended inflation gauge are real time and back savers.

luvlabs · 03-29-2018, 08:33 AM

The valve extensions that Tiffin uses do not contain air. There is a plunger that operates the valve at the original valve stem when the tire chuck or tire gauge is engaged. Much less change of leakage.