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Posted

Picking up a 2012 5.3 LC9 6L80 WT this weekend. Only 25,000 miles.

Fluids will be checked.

Mods I am budgeting for are: suspension + tires, looking at superchips flashcal to turn off AFM, and will assess the brakes.

 

My question is, are there any other known weaknesses on this model run/engine/trans I should be on the lookout for? 

Posted

Other than the ones you already know about, no not really.

 

AFM and oil burning issues on some 5.3's are common. The rest is just common failure points that come with age and mileage. Like upper ball joints, leaking shocks, door lock actuators going bad. The salt belt suffers from rear wheel well rust and under the weather stripping on the bottom of the doors.

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