I need to replace my TCCM and when looking on Ebay and other sites it appears that there are two different TCCM for my 2000 Jimmy. There is the single prong and the 2 prong.

My original one is the 2 prong but what is the difference between the two?

 

i think the 2 plug one is for 236 Auto 4x4 TC (transfer case) the single plug one is for 233 3 button 4x4 TC. there will be a tag on the back of your TC that will tell you what kind you have

 

I know which one I have. It is the two plug. I was just wondering why there was two different types.

 

there is 2 types of TC's for the s10 the 233 which is just plain 3 button 4hi, lo and 2wd. then there is the 236 which has automatic 4x4