It’s a MY 2002, but produced 09/2001, so it’s unfortunately the oldest one.

 

Any unit from an 03-04 will fully support CDL & will have the latest firmware for TC/ABS/HDC.

 

but just to be absolutely clear about this -- you don't NEED to change the slabs. the only issue that will develop is that you'll get the error (and not have abs, hill descent, or traction control) if you start the truck with the cdl locked. being a mechanical system, the cdl will function just fine, and in almost all circumstances the electronics will be fine as well.

 

I think the 03-04 SLAB’s are a great upgrade regardless if you have CDL or not. I’ve noticed both my 99 & 02 with the newer SLABS have better TC function that kicks in quicker. ABS wise I haven’t noticed much, but I snagged both my 03-04 SLABS at junk yards for 20.00. I wouldn’t pay over 100.00 for one but if you do have a CDL setup it’s just like an 04 which is nice.

 

Here is a pic you can check the number and make sure it is what you want.

 

Here is some good info here: which I saved for reference. I have a 2003 fitted with a 2004 t/case. I confirm the 2003 SLABS will work.

Upgrading the SLABS ECU in pre-Facelift D2's | DiscoTD5.com

 

Now that 000150 was an option, I ended up finding one being sold only an hour away, so my impatience drove me to get it today so I wouldn't have to wait any longer for CDL. Thanks for being willing to sell it though!

 

Wow, what a wealth of info in this post. Good forum here!

 

No worries. I’ll continue to keep it around. You never know.