A variable force tensioner, comprising: a housing; a first bore disposed in the housing and having a bottom end, a first portion and a second portion, the first portion having a first diameter and the second portion having a second diameter wider than the first diameter, and being disposed within a section of the first portion; a primary piston slidably disposed in the first bore and including a low pressure chamber disposed therein and comprising a primary reservoir including a second inlet to receive fluid from an external source, and a primary low pressure chamber to high pressure chamber inlet connected at one end thereof, the primary piston creating a high pressure chamber between a bottom portion thereof and the bottom end of the first bore when fluid is fed through the primary low pressure chamber to high pressure chamber inlet from the low pressure chamber; wherein the second diameter transfers additional fluid from the external source to the second inlet of the primary reservoir; a spring disposed within the high pressure chamber and applying a bias on the primary piston away from the bottom end of the first bore; a check valve connected to the primary low pressure chamber to high pressure chamber inlet and configured to allow fluid to flow from the low pressure chamber to the high pressure chamber to force the primary piston to extend outward of the first bore; and a second bore disposed in the housing and including a second piston having a hollow interior forming a secondary high pressure chamber, a second check valve and a secondary low pressure chamber to high pressure chamber inlet, the second check valve being connected between the second piston and the second low pressure chamber to high pressure chamber inlet to control the flow of fluid from the secondary low pressure chamber to high pressure chamber inlet to the hollow interior of the second piston to force the second piston to extend outward of the second bore; and a shared reservoir disposed at a back side of the housing to provide fluid to the second diameter of the first bore and to the secondary low pressure chamber to high pressure chamber inlet. a housing; a first bore disposed in the housing and having a bottom end, a first portion and a second portion, the first portion having a first diameter and the second portion having a second diameter wider than the first diameter, and being disposed within a section of the first portion; a primary piston slidably disposed in the first bore and including a low pressure chamber disposed therein and comprising a primary reservoir including a second inlet to receive fluid from an external source, and a primary low pressure chamber to high pressure chamber inlet connected at one end thereof, the primary piston creating a high pressure chamber between a bottom portion thereof and the bottom end of the first bore when fluid is fed through the primary low pressure chamber to high pressure chamber inlet from the low pressure chamber; a low pressure chamber disposed therein and comprising a primary reservoir including a second inlet to receive fluid from an external source, and a primary low pressure chamber to high pressure chamber inlet connected at one end thereof, the primary piston creating a high pressure chamber between a bottom portion thereof and the bottom end of the first bore when fluid is fed through the primary low pressure chamber to high pressure chamber inlet from the low pressure chamber; wherein the second diameter transfers additional fluid from the external source to the second inlet of the primary reservoir; a spring disposed within the high pressure chamber and applying a bias on the primary piston away from the bottom end of the first bore; a check valve connected to the primary low pressure chamber to high pressure chamber inlet and configured to allow fluid to flow from the low pressure chamber to the high pressure chamber to force the primary piston to extend outward of the first bore; and a second bore disposed in the housing and including a second piston having a hollow interior forming a secondary high pressure chamber, a second check valve and a secondary low pressure chamber to high pressure chamber inlet, the second check valve being connected between the second piston and the second low pressure chamber to high pressure chamber inlet to control the flow of fluid from the secondary low pressure chamber to high pressure chamber inlet to the hollow interior of the second piston to force the second piston to extend outward of the second bore; and a shared reservoir disposed at a back side of the housing to provide fluid to the second diameter of the first bore and to the secondary low pressure chamber to high pressure chamber inlet.