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A constant velocity driveline assembly comprises a tail housing assembly with a housing, at least two bearings inside the housing, and a first drive hub supported by the at least two bearings. The first drive hub may be substantially fixed longitudinally and configured to connect to an engine or tra

A constant velocity driveline assembly comprises a tail housing assembly with a housing, at least two bearings inside the housing, and a first drive hub supported by the at least two bearings. The first drive hub may be substantially fixed longitudinally and configured to connect to an engine or transmission of the automobile. The assembly comprises a second drive hub configured to connect to a rear differential of the automobile. Each drive hubs may include a barrel portion and a mounting flange connected to an end of the barrel portion. The assembly includes a first constant velocity driveshaft joint configured to attach to the mounting flange of the first drive hub. The assembly includes a drive shaft having a first splined axial end coupled to the internal spline of the first constant velocity driveshaft joint. The assembly may include a second constant velocity driveshaft joint comprising internal splines to couple to a second splined axial end of the drive shaft to transmit torque, the second drive hub coupled to an external housing of the second constant velocity driveshaft joint.

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1. A constant velocity driveline assembly for power transmission of an automobile, the assembly comprising: a tail housing assembly comprising a housing, at least two bearings inside the housing, and a first drive hub supported by the at least two bearings, the first drive hub being substantially fi

1. A constant velocity driveline assembly for power transmission of an automobile, the assembly comprising: a tail housing assembly comprising a housing, at least two bearings inside the housing, and a first drive hub supported by the at least two bearings, the first drive hub being substantially fixed longitudinally and configured to connect to an engine or transmission of the automobile;a second drive hub configured to connect to a rear differential of the automobile, each drive hub comprising a barrel portion and a mounting flange connected to an end of the barrel portion, wherein the mounting flange of each drive hub comprises a plurality of holes spaced along the outer circumference of the flange;a first constant velocity driveshaft joint configured to attach to the mounting flange of the first drive hub; anda drive shaft having a first splined axial end coupled to internal splines on the first constant velocity driveshaft joint;a second constant velocity driveshaft joint comprising internal splines to couple to a second splined axial end of the drive shaft to transmit torque, the second drive hub coupled to an external housing of the second constant velocity driveshaft joint;an external fastening ring configured to retain the first constant velocity driveshaft joint to the drive shaft; anda sealing plug and an O-ring that seals the barrel portion of the first drive hub, and an internal snap ring to snap fit inside the first drive hub to retain the plug. 2. The assembly of claim 1, wherein the mounting flange of at least one drive hub comprises a plurality of threaded holes or through-holes configured to attach to the first constant velocity driveshaft joint by a plurality of fasteners. 3. The assembly of claim 1, further comprising a boot housing having a sealing boot, with the boot housing comprising a flange portion configured to fasten to the first constant velocity driveshaft joint and, the boot housing receiving the splined axial end of the shaft. 4. The assembly of claim 3, wherein the flexible boot comprises a deformable sealing element configured to allow both angular and axial movements of the shaft. 5. The assembly of claim 4, wherein the deformable sealing element comprises rubber or silicone. 6. The assembly of claim 1, further comprising a joint spacer seated on a ridge located on the shaft. 7. The assembly of claim 1, further comprising a cap placed at opposite ends of the constant velocity driveline on each of the first and second constant velocity driveshaft joints for sealing grease inside each of the first and second constant velocity driveshaft joints. 8. A constant velocity driveline assembly for power transmission of an automobile, the assembly comprising: a tail housing assembly comprising a housing, at least two bearings inside the housing, and a first drive hub supported by the at least two bearings, the first drive hub being substantially fixed longitudinally and configured to connect to an engine or transmission of the automobile;a second drive hub configured to connect to a rear differential of the automobile, each drive hub comprising a barrel portion and a mounting flange connected to an end of the barrel portion, wherein a sealing plug and an O-ring seals the barrel portion of the first drive hub, and an internal snap ring snap-fits inside the first drive hub to retain the plug;a first constant velocity driveshaft joint configured to attach to the mounting flange of the first drive hub, the first constant velocity driveshaft joint having internal splines; anda drive shaft having a first splined axial end coupled to the internal splines of the first constant velocity driveshaft joint;a second constant velocity driveshaft joint comprising internal splines to couple to a second splined axial end of the drive shaft to transmit torque, the second drive hub coupled to an external housing of the second constant velocity driveshaft joint;a boot housing and a sealing boot with the boot housing comprising a flange portion configured to fasten to the first constant velocity driveshaft joint, the boot housing ad receiving the splined axial end of the shaft; whereinthe sealing boot includes a deformable sealing element configured to allow both angular and axial movements of the shaft and a band clamp that holds the deformable sealing element to the shaft. 9. The assembly of claim 8, wherein the mounting flange of at least one drive hub comprises a plurality of threaded holes or through-holes configured to attach to the first constant velocity driveshaft joint by a plurality of fasteners. 10. The assembly of claim 8, further comprising a joint spacer seated on shoulders located on the shaft. 11. The assembly of claim 8, further comprising an external fastening ring configured to retain each of the first and second constant velocity driveshaft joints to the shaft. 12. A constant velocity driveline assembly for power transmission of an automobile, the assembly comprising: a tail housing assembly comprising a housing, at least two bearings inside the housing, and a first drive hub supported by the at least two bearings, the first drive hub being substantially fixed longitudinally and configured to connect to an engine or transmission of the automobile;a second drive hub configured to connect to a rear differential of the automobile, each drive hub comprising a barrel portion and a mounting flange connected to an end of the barrel portion;a first constant velocity driveshaft joint configured to attach to the mounting flange of the first drive hub, the first constant velocity driveshaft joint having internal splines;a drive shaft having a first splined axial end coupled to the internal splines of the first constant velocity driveshaft joint;a second constant velocity driveshaft joint comprising internal splines to couple to a second splined axial end of the drive shaft to transmit torque, the second drive hub coupled to an external housing of the second constant velocity driveshaft joint;a cap placed at opposite ends of the constant velocity driveline on each of the first and second constant velocity driveshaft joints for sealing grease inside each of the first and second constant velocity driveshaft joints;an external fastening ring configured to retain each of the first and second constant velocity driveshaft joints to the drive shaft; anda sealing plug and an O-ring that seals the barrel portion of the drive hub, and an internal snap ring to snap fit inside the drive hub to retain the plug. 13. The assembly of claim 12, wherein the mounting flange of at least one drive hub comprises a plurality of threaded holes or through-holes configured to attach to the first constant velocity driveshaft joint by a plurality of fasteners. 14. The assembly of claim 12, further comprising a joint spacer seated on shoulders located on the shaft.