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Old 08-06-2013, 06:53 PM   #3
69gmcc10
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Join Date: May 2011
Location: Missoula, MT
Posts: 934
Re: My New 03 1500HD

So, aside from the obvious reason (the HD sticker), I decided to upgrade (opinion) was that on weekends I am routinely towing 1 of several trailers ranging form 3000 lbs to 7500 lbs and I was always afraid of the 4l60e failing me when hooking up to somethin'. Also, I always seem to have a 3rd or 4th passenger. I went with the 1500HD because it has the LQ4, the 4l80e, 8600 lb towing capacity, but also 3.73 gears in the diff. So with the higher gears maybe it will get better mpg than the 2500HD my father has (14 mpg). From what I have driven on the interstate and highway it has proven to be true so far, but only time will tell.

The list of modifications will include, but are not limited to:

-Smoking the cab lights
-Remove the door trim (it is discoloring)
-Lifting the front 2" to level it out (and alignment)
-Intake (taken form the green truck before it sold)
-Tint the front windows (match the rear)
-Exhaust (stock 1500HD seems restrictive compared to 2500HD)
-HD Mirrors
-Custom Tune
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