Tire Tube Valve Stem Type

[Scudrunner]

Its about time I changed my tires out I have the larger 18 X 5.5 8ply which are easy enough to find.

However when looking for Tubes I found several types of Stems available.

TR-15
TR-67 70 Degree Tube Metal Valve

I have always thought the stems on mine where short (ish) what are you folks running before I hit the checkout button.

Not the best pic and yes I’ll be having those sand blasted and repainted.