Serp belts cost $15 and take only a 14mm socket wrench to change...or some here use just their hands. Some synthetics require the use of 2 bottles of LSD additive - listen when you make sharp turns or tight circles for noise. Also, see manual (or search this site) for proper diff fluid based on temps to be encountered in next 6-12 months. 2 heavy will make it harder to drive until warmed up but should do no harm.