Problems with 2005 Nissan Xterra POWER TRAIN

I purchased a brand new 2005 xterra 1/2006 with 10 miles!!!! i paid 28,000 for this vehicle and worst vehicle i never had!!! i only service this vehicle at the dealership!!!! i had so many issues with this new truck!! the check engine light keeping on at from the very beginning and when i took it to the dealership said nothing was wrong! over time, this was a complete lemon!! the vehicle had to replace a radio, 6 batteries, 3 alternators, hoses leaking, oil leaking within 3 years purchasing a new truck, fuel sensor replaced, fuel pump replaced, 1 cal.conventor replaced, and worst of all transmission issues!! the truck will not go up hills and when i took it to 2 different places said that the radiator was leaking into the transmission and nissan knew about this and never said nothing!!!!!!!!!!!!!!!! i only took my truck to the dealership and they never said a thing! i could replaced the radiator long time again to avoid the transmission going out!! 5,500 repair job!!!!!!!!!!!!!! this is poor quality truck with all the issues i had since i brought it brand new !! my acura have 241,000 and never had any of these issues that i purchased used!! i contact the corp office and they will never do anything! the nissan dealerships around the country knows the issues with these nissan cars and never say a thing!! i will never purchase a another nissan!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! they will not stand behind their product!! 4 of my friends with nissan (xterra, pathfinder, and maxima) the transmission went out within 6 months of each other!!! *tr

Differentials front and rear are under engineered and break extremely easily. nissan would not warranty replacement despite many of failures and claimed it was not an engineering defect. currently mine has a blown rear differential, and vehicle is not drivable. *ak.

The clutch first failed at 2800 miles. nissan replaced it but told me it was bad driving. i have had a clutch my entire life. the second failure was at 52000 miles. nissan told me it was out of warranty so i had it replaced elsewhere with oe parts. it just failed again at 78000 miles and again they said it was out of warranty. i will now have the fourth clutch installed and am looking at other than oem equipment. *kb

While driving down a steep hill, i turned off the overdrive and the dashboard display showed the vehicle had shifted into 4th gear but in fact is was still in od (5th) gear. upon activating the button to shift back to od, the vehicle now shifted down into 3rd gear but displayed that it was in od (5th) gear. i live in the san bernardino mountains of southern california and i need to downshift to slow the vehicle when going downhill and to avoid overheating the brakes with a possibility of brake failure. i have visited two different nissan dealers on a total of four occasions to resolve the problem and they tell me that is the way the vehicle functions and there is nothing that can be done to fix it. although i thought i was buying a vehicle with five gears, in fact when going down hill it does not have a 4th gear. updated 02/14/11 *bf

Differentials front and rear are under engineered and break extremely easily. transfer case also wouldn't shift into 4 wheel drive. *tr