Originally Posted by 3hundred
Were it mine, I'd start from scratch, assuming you're not getting the maintenance records with it. Replace all fluids and filters including diffs, transfer case, transmission fluid / filter. Thereafter follow the maintenance schedule starting at mile zero.

Trans fluid change supplies, says BMW, used same on my 13 300 and 15 Durango linky



This here.... ALL fluids and filters. Replace the plugs and serp belt, lubricate the brake components that need lubed to slide freely. The transmission will probably need more than 6 quarts, so the link above is a great deal if you can add a few quarts to it(mopar wants $50 a quart for the fluid, and $300 for the pan kit, the filter is not a serviceable item) that being said, having the trans serviced at a dealer last time I checked was almost $900. If you choose to flush and fill the brake system, you will need access to a handheld/laptop that can actuate the abs to completely do the job.