well i purchased the oil pan and filter Assembly and it comes with the gasket and bolts, parts dept said i also needed the gasket,not so, he opened the box an it is part of the pan with bolts.$199, he also said i needed 9 qts of zf 8 oil at $36 a qt,not so. those are specs for a dry transmission, a drop and fill is 6qts (so don't get sloppy) i have 30,000 on my truck but i tow a 6000lb rv so i will do a drop and fill with zf fluid this time because of warranty. then again when its out of warranty with amsoil or or a good synthetic . i watched the videos on a drop and fill and the secret is not to let the oil get too hot because the trans cooler thermostat will open and raise your fluid level and waste fluid, keep it above 86deg and below 125degrees. i do hate paying that much for oil but if i have a warranty issue i want zf oil in it and not amsoil or any other red tinted oil in it. dealer wanst just under $900 to do a drop and fill $300 of it is labor , do it myself $415 and it looks fairly basic if you follow the directions.. i will post pics of what i find if out of ordinary..