My bro and I have had our GMC C3500 checked by car-electrician and found out we needed to replace the TS Electrical Switch. We can't find the part so we looked on the net. Ebay motors did not had one for the moment and soon we came upon this site. They sell a TS Electrical Switch by Replacement Parts inc am not too sure if this part here would fit as they have too many models that they post it for. I asked the operator and they told me that its a 1-product fit all which are listed. Is this true???? Thanks you for any info. You would be helping me and my bro.