can anyone using Tire Man valve extenders for rear dual tires give me information on their performance? Are they worth the near $300 cost to have them installed?

Have you checked with your local commercial truck tire business, where the 18 wheelers get their tire work done? They can make you the same brass extenders and install them for a much lower price. At least they do where I live.

I don't really know what you mean by performance,but I have had mine for 5 years and 2 sets of tires and have had no problem at all with them. The flow thru caps make it easy and fast to check and add air if needed.Here is a friend that had them for 9 years back in 2013 thru 4 sets of tires and they are still going strong with no problems.Yes I think they are worth the cost,but that is just me,I have no problem buying and using a quality product that will give you long life and make things easier.

I just finally got some 135 degree steel extenders after looking for a long time. Not an ideal solution, but at least I can check and fill as necessary. About 14 bucks from the rv dealer.

brirene wrote:I just finally got some 135 degree steel extenders after looking for a long time. Not an ideal solution, but at least I can check and fill as necessary. Marginally OK but only IF the valves they're attached to are METAL. The rubber ones barely hold up on their own and the weight of extensions, adapters, etc. really tears them up. Then you have a leak or catastrophic failure where the valve fails and leaves a BIG hole.The best extenders are "airless." There's a pusher inside. When you put a gauge or air hose on, it presses on the pusher and the pusher opens the valve on the tire. Ordinary extenders press the tire's valve when you tighten them on installation. Then the connection, the extender, and the extender's valve can all leak.Back to the OP's question: YES!!! Very much worth having custom valves, whether bought or made up. We really need only a rear set. Front and Spare can get by nicely on ordinary METAL valves. Just not the very shortest ones if it's Ford wheels. Stem needs to be about 2" to allow gauge/chuck to clear the rim.

I've had mine on my 4x4 camper for 9 years now and I fully air down to 25psi for beach driving at least 8 times a year and NEVER had an issue with these solid metal value stems. I used the extension rubber ones and braided steel ones and BOTH caused leaks and one came loose driving down the highway....not good! So, YES worth the investment to have solid metal values on all tires and especially on the inner dual wheel.

Tire Man Valve Extenders for dual tires | Good Sam Community

wearenh
Explorer
May 22, 2016
The TST (and EEZRV, and all other TPMS) are not stems, they are caps ... see pics
I recommend the EEZ brand... the pics below show the sensor caps with the
anti-theft housing ... if you remove it as I did (living life on the edge), the
sensors are the smallest of any TPMS sensors, and the system works great

EEZ TPMS Systems (we have 10 sensors: RV + Trailer)
Bobbo
Explorer II
May 22, 2016
Since each tire only has one valve stem, how can you install both the Tireman stems and the TST stems?
ADOR
Explorer
May 21, 2016
At least at the CW where I purchased the Borg kit, NO. Part of the reasonI returned it. Im here at Discount Tires right now having my Tireman Metal Valve Stem Kit (Not extenders) and TST 507 internal, strap mounted sensors installed. Getting ready for 3 week road trip.
Ponderosa
Explorer
May 21, 2016
Does CW do the install on their valve extenders? $$?
WA7NDD
Explorer
May 20, 2016
I put Tireman valves on my E350 two years ago. So much easier to deal with the tires. First time you air up you'll be glad you got them. I added the M66 Tireminder to them this month. Was so nice to just screw the transmitter onto a strong valve stem out in the open with no hassle. Worth every cent.
IAMICHABOD
Explorer II
May 19, 2016
Baja Man wrote:
are these the Tire Man extenders people are referring to?

Tire Man

Yes they are the ones.
Baja_Man
Explorer
May 18, 2016
are these the Tire Man extenders people are referring to?

Tire Man
ADOR
Explorer
May 18, 2016
Borg's kit from CW have great quality. However, I have decided to return it because I need a Full Kit for front and rear. I purchases the Tireman kit. Also great quality. They also came with the oval rubber support (x2) for the outer wheel.

Both kits are great. I have seen both kits. Just a matter of preference on which kit you want.
Baja_Man
Explorer
May 18, 2016
Great....I think I have it figured out. CW price is pretty good for the rear duals. Need to find a set of fronts as they are not avail from CW.
j-d
Explorer II
May 18, 2016
The cap linked above is what I to in your other thread, V2B, Gator, Crocodile. And YES, you found the right set of Dually Valves.