Dash knobs

[jasonmcc]

Does anybody happen to know what size knob inserts are used on the vintage air system? I'm looking at different aftermarket knobs and I'm unsure of the size.

 

[betzgb]

I have attached a couple of photos that may help. This is a rotary knob from the Gen IV upgraded controls.

 

[jasonmcc]

I have attached a couple of photos that may help. This is a rotary knob from the Gen IV upgraded controls.

Looks like about 1/4 ID will work. Thank you!

 

[jbsepulvedag77]

https://www.summitracing.com/parts/vta-497006