Nice thread and mods (thanks again for linking to it from my new thread) !
Quote:
Originally Posted by aardvarcus
Also you can see the transmission crossmember hangs down below the frame about 2" for no reason. That can't be good for airflow down there. There are aftermarket flush ones available, or it wouldn't be that bad to fabricate.
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I gotta agree here. The first time I got under my 2500HD I was shocked to see such lazy engineering by GM. $230 is a lot to swallow but I am now obsessed with this thing:
Transmission Cross Members By DJM At StylinTrucks.com
This is the only one I can find for a Chevy/GMC 2500. Anyone else know of other options?
Improved aero, better ground clearance, and "slightly moving the transmission, to correct driveshaft alignment" whatever that means. Is the factory alignment known to be poor?
With the low-pro crossmember it seems like you could get a nearly flat underside back to the rear axle, which hangs.... way down. Not sure if anything beneficial can really be done there to address/improve it and still allow for plenty of movement.