Now lay the tip of the
non-moveable portion of the angle finder on the differential pinion
flange face.
Again, adjust the scale to be parallel with the drive shaft
and lock the angle finder thumb screws to secure the angle setting.
Take
the angle reading and compare it to the reading that you recorded
earlier for the front.
The driveshaft angles must
offset each other.
EXAMPLE: If the front angle reading
is +2 degrees (92 on the angle finder),
then the rear pinion angle must
read -2 degrees (88 degrees on the angle finder).
Baseline for a Cobra IRS without purchasing
the FR 1401 Delrin isolated rear diff lowering mount,
is raising the front of the diff as high as you can get it without it
hitting the subframe.
This will not be perfect, but it will be an improved driveline angle
compared to the way the car came from the factory.
In order to perfectly off-set the driveline angle, you need to purchase
the FT 1401 Delrin isolated rear
diff lowering mount or the complete
bushing kit FT 5001 which includes the FT 1401 lowering mount.
The diff angle cannot be set until the subframe goes back in the
chassis.
No, the car does not have to be
level doing it this way.
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