Originally Posted by sail2liv
Just put the screw on type here, both on trailer and tow vehicle....TV only lets me know when pressure on rear tire goes below 75 psi....I like just looking TPMS when I get in truck to see if need to air tire....and what temps are....have rubber stems here and so far no trouble....course I don t drive fast .....everyone passes me.....still have not figured out why they always pass me about three times in a day....
GM developed special rubber stemmed TPMS valve hole sensors. Not sure what the pressure rating is on them but am sure they exceed the rating for the OE tires.
Passenger rubber stems are only rated for 65 psi max so you are taking a chance with the TT especially the extra weight, though small, is also using up any safety factor you might have had. I strongly suggest bolt in valves when screw-on TPM sensors are used and/or when the tire pressure is 60 psi or higher.
Snap-in valves should also be replaced whenever you replace tires as the valves age out too and its easier to remember to do it then than try and keep track of when you last replaced the snap in valves.
I write a blog on RV tire application and safety. RVTireSafety.com
Also give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV