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My dad got his Tahoe for almost 2 years already. I'm not sure how many miles did it run but he's using it everyday. Maybe the problem with the electric part of it started with the car's age. He has some difficulties in starting the vehicle. He don't want to send it to the mechanic because he say that he can do it alone.

The problem was the Chevrolet Tahoe shock absorbers, can we replace it by an aftremarket part? Another suspect was the spark plugs and Chevrolet tahoe spark plug wires. Do we need to have some hints before having it replaced? Where can we buy cheap brands? And can we used stuffs that aren't really for trucks, can we have those that are compatible? Really need your suggestions. Thanks.