ok that just about clears it up. i knew it would be the correct harness, just wondered how my guages were going to work and why exactly it still need to be modified but that makes sense..modify for the guages. im just glad i have the best of both worlds, a great looking simple obs without all the electrical itnerferance of its newer but same bodystyle counterparts so i can get it done so much easier. i do think im leaning towards going sixspeed though. i can only imagine how much fun that will be lol.

thank you for your clarifications LS1GMCTruck.