Hi everyone,

I own a 2008 Hummer H3 that has a bad transmission due to a radiator failure resulting in coolant and transmission oil mix.
I did a full flush and replaced filter but ended up losing 3rd gear.
Unfortunately where I live there is no expertise to rebuild - so I will need to replace.
-

- Can I just replace my current transmission with any year H3 or Chevy Colorado? ( 2006-2009 )
- And just as important, does anything need to be re- programmed on the vehicles computer?
I really love my H3 and my wife has one as well. Had them shipped from Florida to the Southern Carribbean.
Any info is well appreciated.!!!

-Sebastian

 

Don't know about the programming, but the H3's have a unique transmission pan that has a cut out for the front drive shaft. I believe you can just swap pans on a compatible transmission.

 

Any 4L60E Trans 2000 - 2010 from any GM truck would work so long as you use the H3 Trans Pan like brothapig said. I am sure 1996-2000 years would also work. Should be plug n play, no programming so long as the replacement is a stock replacement or rebuild. If internal changes/modifications different from OEM were made, that might need to be addressed.

 

The valve bodies are unique and there are more than one!