Range splitter question

swaan · Oct 11, 2016

EWV said: ↑

Hi have an 18sp eaton fuller.
Replaced the gear shift knob about 2 months ago (for a nice shiny pretty one lol ).
Been absolutely perfect until a couple days ago.
Everything still works as it should but now ....with increasing intensity .... when I flick the splitter back to go down a half gear there's a loud piercing noise like an air leak right in the shifter knob.
Literally push it forward 1mm it stops.
It does not do this going up half a gear.
We took the cover off below the knob and checked all the airline connectors which are fine. The noise seems to be coming from actually inside the knob.
Before I take it apart are there any ideas as to what it might be or what I should look for....I remember how tricky the sucker was to put on the first time with the ball and springs etc lol.
Many thanks
Click to expand...

I just went thru this with one of my trucks. My driver bought a fancy chrome knob for the shifter. I re@re it on the original eaton 18 speed knob.

Long story short, those chrome knobs are ####.
Put a oem eaton knob back on and your problems will disappear.

EWV · Oct 11, 2016

swaan said: ↑

I just went thru this with one of my trucks. My driver bought a fancy chrome knob for the shifter. I re@re it on the original eaton 18 speed knob.

Long story short, those chrome knobs are ####.
Put a oem eaton knob back on and your problems will disappear.
Click to expand...

Ha gutted...love my chrome knob lol. Going to give it a grease and one go at it working ok otherwise will take your advice.
Thanks

xsetra · Oct 11, 2016

Had same issue kinda with my 15 speed. New knob from Fleetpride. Twice both leaked air after a couple weeks using range selector.
Put the official Eaton knob on, no problems. They all were stamped made in Mexico.

EWV · Oct 11, 2016

xsetra said: ↑

Had same issue kinda with my 15 speed. New knob from Fleetpride. Twice both leaked air after a couple weeks using range selector.
Put the official Eaton knob on, no problems. They all were stamped made in Mexico.
Click to expand...

Seems like a common theme appearing here...well I've taken it art abd greased it as suggested earlier. Will see how long it lasts and then it's probably tine to resort to an original eaton fuller lol. Thanks

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