slikshift kit and cdl air ram install

**Discosux** · 1st November 2020, 10:26 AM

Ive got some time this week, so getting around to hooking up a cdl

Will be going for an air ram, running off vacuum to do the actuation.
Also fitting the shift kit.

The old bias spring setup is all ugly and broken.

**Slunnie** · 1st November 2020, 10:50 AM

I'd better follow this thread!

**Discosux** · 1st November 2020, 11:38 AM

Slick shift is straightforward,
I did have to grind the right spring a bit.
No way was it going to fit without a bit of removal.

**Discosux** · 1st November 2020, 05:09 PM

Its a little rough,

**Discosux** · 2nd November 2020, 04:52 PM

Just not quite enough force from vacuum.

Plumbed up air compressor comming soon.
100psi will do it - 14psi of vacuum equivalent is enough to engage - but not disengage.

Anyone else thinking of doing this, my advice - just buy a cable setup. Not worth going down this road.

**Discosux** · 2nd November 2020, 04:54 PM

The cylinder I'm using is a 1" bore. A two incher would do the job but that starts getting ridiculous.

**onebob** · 2nd November 2020, 09:06 PM

Originally Posted by Discosux

The cylinder I'm using is a 1" bore. A two incher would do the job but that starts getting ridiculous.

A 1inch is fine - I’ve been down that road and would NEVER trade my air ram for a cable setup. No wrenching on levers and cursing

Here’s a pic of mine when it was new, ‘tis not shiny and pretty now but is still working PERFECTLY

IMG_6291.jpg
.... and a short vid
my CDL activation switch - YouTube

**onebob** · 2nd November 2020, 11:04 PM

...... and a pic after 9 years service

**Discosux** · 3rd November 2020, 07:59 AM

Nice work, is that running off vacuum?

Originally Posted by onebob

...... and a pic after 6 or 7 years service

**onebob** · 3rd November 2020, 08:32 AM

Originally Posted by Discosux

Nice work, is that running off vacuum?

I’ve just edited my last post - referring back to my initial post on this forum I see that I installed it over Easter of 2011.
It is air operated (80>100psi) - I bought an ARB airlocker compressor and mounted it on an ARB D2 dual battery tray designed to bolt to the passenger side bulkhead behind the ABS module... not a good spot for a dual battery (too close to the turbo) but perfect for an onboard compressor. I don’t have diff lockers so I used the ‘twin’ ARB airlocker wiring loom that came with the compressor to ‘select’ and ‘operate’ the CDL air ram. The compressor gets equal use for tyre inflation as well.

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