Probe fitting size on Mopar exh brake?

[BHolm]

I want to order gauges for my truck. The Mopar Jake brake that is going in Monday has a port for the probe. Anybody know if it is a 1/4 or 1/8 inch?

 

[MMeier]

If its like the older kits, I do believe it is the 1/4" size, but don't qoute me on that, anyone else?

 

[nickleinonen]

if in doubt, get the 1/8" probe. you can alwaus bush the 1/8" to 1/4" size...