Can't help you there but I did find out they are no longer available. They were upgraded to the TKO. You can check it out Here What are you putting it into? The GMC truck in your Photo Gallery?
YES, that was my goal which I installed the engine and new TKO in my GMC yesterday afternoon. I told everyone I would have it inatalled by the end of the year !!! I had eight hours to go, no rush !!
But I did have some GOOD help.
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