Axles hold our tyres and this helps the tyres to rotate properly and carry all load of the vehicle .The axle which is getting the drive from the engine is called the drive axle . In the front wheel drive vehicle the front axle is getting is getting the drive . If the rear axle is getting the drive it is called rear wheel drive axle. A four wheel drive means all the four wheel and two axles are getting the drive from the engine . Trans axle is a type of drive axle . It is a combination of transmission and front axle ,so if it’s a front wheel drive vehicle and it’s a small vehicle trans axle comes into play means front axle is getting the drive and this drive is given from the engine . This combination of transmission and front axle and this section is called trans axle .At cosmo car parts we have high quality drive axle and we will hook you up with the best quality drive axle at the best price .