So Im setting up the new differential for my CVLX.
Ford 8.8
Ford Racing Master install kit
Ford Racing 4.10 R&P
Torsen T2-R carrier
So I discovered that this Ford racing kit came with the new design high torque inner pinion bearing and race first used on the GT500. Reading around about this, supposedly there is supposed to be a shim behind the race because the bearing is shorter. Then I read also that the Timken bearing and race used in factory builds needs the shim and the Koyo bearing supplied, shims up like the old style bearing.
The kit did not come with any such shim regardless.
My thought is that if the shim is missing and supposed to be there then the result would be that I would need a lot of shim between the inner bearing and the pinion head. Because whether the shim is between the housing and the race or between the bearing and pinion the end result is the same.
So, Since I was unsure of if the shim was supposed to be there I didnt start with the .024 pinion shim that was on the 2.73 pinion and went with .035.
After installing the pinion and then putting the carrier I adjusted the carrier shims to bring it to .011 backlash.
Then I patterned it and got this.
So I went back to the Ford racing install instructions and I must have misunderstood what I was needing to do to correct this pattern, so I added more pinion shim.
I readjusted the carrier to .012 backlash and did another pattern.
A lot worse. Im having trouble visualizing how adjustments in the shims change the pattern. The instructions have a pretty basic drawing of some gear teeth and Im not sure what side is which. So, Im thinking I should have gone the other direction with the pinion shim. Probably towards the factory shim.
Am I right or am I wrong?
Ford 8.8
Ford Racing Master install kit
Ford Racing 4.10 R&P
Torsen T2-R carrier
So I discovered that this Ford racing kit came with the new design high torque inner pinion bearing and race first used on the GT500. Reading around about this, supposedly there is supposed to be a shim behind the race because the bearing is shorter. Then I read also that the Timken bearing and race used in factory builds needs the shim and the Koyo bearing supplied, shims up like the old style bearing.
The kit did not come with any such shim regardless.
My thought is that if the shim is missing and supposed to be there then the result would be that I would need a lot of shim between the inner bearing and the pinion head. Because whether the shim is between the housing and the race or between the bearing and pinion the end result is the same.
So, Since I was unsure of if the shim was supposed to be there I didnt start with the .024 pinion shim that was on the 2.73 pinion and went with .035.
After installing the pinion and then putting the carrier I adjusted the carrier shims to bring it to .011 backlash.
Then I patterned it and got this.
So I went back to the Ford racing install instructions and I must have misunderstood what I was needing to do to correct this pattern, so I added more pinion shim.
I readjusted the carrier to .012 backlash and did another pattern.
A lot worse. Im having trouble visualizing how adjustments in the shims change the pattern. The instructions have a pretty basic drawing of some gear teeth and Im not sure what side is which. So, Im thinking I should have gone the other direction with the pinion shim. Probably towards the factory shim.
Am I right or am I wrong?
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