Valvestem Size

[MikeRoadkill]

Hello everyone!
We just ordered a 2024 Montana Legacy 3231 CK with IS suspension.
I'm looking for the valvestem diameter base. So i can order GM TST replacment to be installed. My TV is a 2024 AT4 3500. Please can someone help?
Thanks Mike

[Rotnjonny]

Unfortunately I do not have your answer. I was more curious that your Legacy edition didn’t come with the tire pressure kit. My 2022 3791RD Legacy had them as “standard” equipment.

[Lee-CI]

My interpretation is that the OP is wanting the GM gear installed so that his in-dash display will show the fiver's tire pressure instead of utilizing the separate TST display.

[Rotnjonny]

Ah. Makes sense. Thank you

[MikeRoadkill]

Yes Lee-Ci is correct. My Montana has the Legacy edition and has IS and disk breaks. Sorry my first time of trying to ask.
I think at one time there was a thread about this ?. I think the Diag was .425 or .624

[LarryG82]

Roadkill, i researched this a few months back. Nichols Machine and Welding in Phoenix area can supply GM sensors in the .625 valve stem diameter. About $48 per wheel. My TV is a 2020 GMC, and that year TV could not read pressures above 100 PSI without replacing a TPMS receiver (and flashing). I’ve heard but not verified the newer GMC’s will read something like 150 PSI now. I was going to be Appx $300-450 into just getting my 2020 TV to read above 100 PSI, so I went with TST system. I’m going to try and paste a link to Nichols, but if it doesn’t work just search for Nichols Machine & Welding.

https://nicholsmanufacturingandweldi...olsFocus=false

[MikeRoadkill]

LarryG82
Yes the new 2024 GMC goes to 150psi. Thanks for the info. I just order them.
Mike