My truck came with the 18" OEM styled steel wheels (69547). According to searches of TS it uses a 40-degree TPMS.

It will be upgraded to 18" OEM chrome wheels (69517-chrome)(Toyota part #426110C040).

http://rover.ebay.com/ar/1/711-53200-19255-0/1?mpt=297858042&adtype=1&size=1x1&type=3&campid=5336432678&toolid=10001 Amazon.com: Toyota Tundra: Set of 4 genuine factory 18inch chrome wheels: Automotive (http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2FToyota-Tundra-genuine-factory-18inch%2Fdp%2FB003ILE5H2&tag=5336432678-20&linkCode=ur2&camp=1789&creative=9325)

The Toyota rim 69517 is a silver alloy rim that apparently uses the 20-degree TPMS.

First - are the above details correct?

Second - will the 40-degree sensors fit the 69517-chrome wheel?

Third - if the 20-degree sensors are needed, where is the best and most economical place to get a set?

Thanks.:ts: