About cluster Digital

We need a bit more information from you...  First thing is year?  Next would be are you looking for the body side electrical connector itself or do you require it to be cut off with a length of wire behind it to splice it into your existing harness?

I am also wondering if this is the section where you will get the best help.  Are you installing a digital dash in your vehicle which originally came with an analogue dash?

that looks like it was done in an english translator..

Forgive but my English is not very good...... My chevy Blazer is year 1991 and originally he comes with analog cluster and I want to swap it for the digital cluster, I look for the connector of 34 pines that connects the line with the digital cluster. Thank you.

http://lmctruck.com/

LMC Truck is always a good place to start looking.  Find your year, and browse through to find your part.

I'm not sure if any retailer is going to have the part you are looking for. 

From your profile I can see you are in Chile and I assume that blazer's are not all that common in your country.  Unless someone around here sees this thread and happens to be parting out a 1st gen with a digital dash or know someone that is, it is going to be difficult to find this connector.

I guess I would question why you are attempting to make this swap.  The digital dash used in the 1st gen trucks was not known for its reliability.  I would advise against making the swap, but it is your choice.