BMR Suspension TAS012 - Manual (Page 5)

5
TORQUE ARM INSTALLATION INSTRUCTIONS (Cont.)
The rear angle on the differential
mounting plate was 88 degrees. You
need to subtract 90 degrees from this to
get your pinion angle, resulting in -2.
The driveshaft angle just happened to be
at 0 degrees. The difference between
these two angles is -2, right where we
want to be. If your resulting angle is
anywhere between 0 and -3, it is an
acceptable angle. To adjust this angle
you can use the jack screw located at the
back of the torque arm to raise or lower
the pinion simply by turning the screw
(refer back to Image 6). The screw will
turn against the rear end, pushing it upward. If the angle is off excessively, use a pry-bar
to rotate the rear end until the angle is close enough to use the jack screw.
21) Once the driveline angle is set, tighten all 5 cross-bolts to 90 ft/lbs.
22) Make sure the jack screw is touching the differential housing and then tighten the jam-nut
located on the jack screw.
23) Re-tighten the leaf spring bolts.
24) Fill the differential with gear lube.
25) Grease both of the front grease fittings with a silicone or other synthetic based lube.