Gears for OBS Silverado
08-15-2010, 11:52 PM
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On The Tree
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Gears for OBS Silverado
I have a 1999 Extended Cab truck with the 5.7 Vortec/4L60E and my next mod will probably be installing a Truetrac with a set of gears. I currently have 3.42's with open diff and I had my mind set on 3.90's for a while, but I'm having second thoughts about going with this setup. I've considered doing 3.73's, but I would like to know if anyone has has any experience with the 3.90's. I'm running a 275/45R20 tire that is about 29.75 inches tall. I drive the truck everyday and do a little highway driving, but not everyday. All my buddies have NBS trucks and are running 4.10's with their 5.3's and a couple with LS1 swaps. I know the 350 makes a lot more low end power, so I don't think I need to go with that high of a ratio. Thanks
08-16-2010, 12:14 AM
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i wouldnt be afraid at all to run a 4:10 gear in that truck.
your not going to notice that much of a difference going from 3:42 to 3:73.
oh and what are your plans for the truck?
your not going to notice that much of a difference going from 3:42 to 3:73.
oh and what are your plans for the truck?
08-16-2010, 03:42 PM
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Aight well I'm still gunna think about it, but plans for the truck for now are that its my daily driver. Maybe when I get out of school an LS swap one day...haha But as for now, not trying to run fast as possible just trying to add a little more go. Thanks
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