Hello trailvoy squad I'm thinking about purchasing a 2005 Denali XLT with 5.3ltr V8 for $300 the body and interior are in excellent condition no rust major dents or damage on the exterior the interior is pristine but the vehicle needs engine & trans! I have my own mechanic who's more than capable but I'm wondering if this engine is as good or reliable as my 2003 Envoy XLT 4.2inline 6 is! My 03' has over 287,000 miles and is solid except an upper intake gasket leak and a camshaft position sensor needing replacing but it's been a heck of a work horse, but was wondering if the Denali I'm thinking about is just as reliable or maintenance friendly? The AWD system is another concern for me as well because I know they can be troublesome? Any advice about this purchase would be helpful!