I’m new to GM so apologies if I’m in the wrong place!

I recently purchased some retired work trucks with suspected bad transmissions. Two 2010 Silverado 1500 2wd models with the 4.3l v6, and one 2012 in the same configuration.

When I search for used parts, I can barely find anything, and the prices are crazy!

GM specifies part number 19299342 Code 2CBD for the 2010s and 17803880 Code 0AAR for the 2012.

Can anyone tell me if there is a way to make the older, more plentiful models fit? Any help will be greatly appreciated!

 

you will need 09+
valve bodies are different
you can technically make it work, but it is not "plug and play"

 

You have the codes and years mix-matched...

 

Oops! Thanks!

I saw a transmission from the earlier 2000s for sale with Code 2CBD but I’m assuming that’s the bolt pattern on the bell housing or something and not a signal of automatic compatibility.

 

2005(ish) and newer 4l60e's had input shaft speed sensors.
It's technically possible to make a non ISS trans work in and ISS application...but it's a pain in the ***, and never really 100% right

After 2009, the valve body was changed and there was a solenoid missing. you have to really know what you're doing with the valve body on these to transplant an early model into an 09+
long story short...don't try to hack job in an older 60e you find on craigslist or from the junkyard...support a local trans builder and have the one that came from the truck properly rebuilt.

 

Those codes are used to mark what vehicle the transmission was built for/ installed into during vehicle production.

The code : "2CBD" could be used for a 2002 year transmission or a 2012 year transmission.

They way in which a transmission is determined to be one year or the other, was mentioned above by "Da Maroon Monsta".

The 2012 transmission would have a turbine speed sensor and corresponding turbine-shaft. The 2002 transmission does not.

 

On a similar vein, does anyone know the difference between the 2010 Colorado 4L60e (17803811) and the 2010 Silverado 4L60e (17803880)? There are way more affordable Colorado units available and if it’s just an issue of the bell housing or something that might be just the ticket!

 

Read that part again pal^^

The colorado trans should technically bolt up with a bellhousing swap. It should have 300mm input shaft and the same VB as the silverado. But the servo, clutch count, and valve body calibration may very well be quite different. I cannot say with 100% certainty
All this time and energy you're going to spend in swapping in a different trans and playing the guessing game of "I hope I pick the right hodge podge of parts" is going to probably break even with just going to a local rebuilder and paying the money to have them do it right. Then you'll have the trans that matches the truck and you won't have to worry.

But...if you like to gamble...then a colorado trans should work with a bellhousing swap, go to town and have fun bud

 

Thanks for the info!

I’m definitely with you on how easy it is to waste money when you’re paying the shop rate. Normally I’d do a quality rebuild any day, but the target vehicles are very high-mileage 2wd work trucks (350k). I really need to limit what goes into them.

A ton of the info on this trans family ends around 2007 for some reason, so I really appreciate the advice!