Duramax Forum Supporter
Join Date: Aug 2009
Location: Albuquerque, NM USA
I'm also getting ready to do my first service (around 7k) At this time I'm going to change the engine oil, filter, tranny filter, check all fluid levels, but will not change diff and trans case oil yet. (I've only towed my 5.5k trailer 500 miles and don't plan on towing again until the spring.) My question is how many fittings do I need to grease on the chassis/front end. should I use a gm product? What do you all suggest. Thanks.
2009 GMC 2500HD LMM SLE CC/SB 4X4
spray on bed liner, nerf bars, MBRP 5" DPF back exhaust, remote start, t-bars cranked.