2003 Tahoe LT 4x4 upgrades?

007KenL

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Hello everyone, I have a question, or rather a request for advice: I'm wanting to upgrade my 03 tahoe but I'm not so mechanical savvy. What are some upgrades I can do that help with the suspension and handling and overall operation of the vehicle? I've only come up with replacing the brake lines with stainless steel and... well, that's it...
I have 20" rims on it now but I'm considering dropping back to 18s. I'm going to put a 145 Amp alternator on and I've got up replace the oil pickup tube o-ring to increase the oil pressure... anyone have any suggestions? Please, include reasoning behind your suggestion and how much it costs and what else would need to be changed also. Thanks!
 
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