B&M 70501 Cast Aluminum Rear End Cover for GM 10.5 14 Bolt - Manual (Page 2)

STEP 4. Remove all the bolts
except one at the top. Loosen the
remaining bolt but do not remove.
STEP 5. Carefully pry the cover
loose with a flat head screw driver,
being careful not to damage the
surface, and allow the oil to drain.
STEP 6. Remove the last bolt and
the cover once completely drained.
STEP 7. Using a dry lint free rag,
clean the accessible areas of the
axle housing and check internal
components for visible excessive
wear or other problems.
STEP 8. Clean all gasket material
from the axle housing surface (See
Figure 2).
STEP 9. Verify what size cover
bolts are used on your axle housing.
These axle housings came with
3/8”-16 bolts or M8x1.25 bolts. Both
size bolts are included in this kit.
STEP 10. We recommend running
a tap of the correct size
(3/8”-16 or
M8x1.25) through each threaded
cover hole on the axle housing to
ensure an accurate torque on all
bolts.
STEP 11. Install the supplied load
bolts in each boss from the inside of
the B&M Cast Aluminum Rear End
Cover until they bottom out (See
Figure 3 & 4).
STEP 12. Apply a bead of RTV
silicone gasket maker to the B&M
Cast Aluminum Rear End Cover.
Run the bead inside the bolt holes
(See Figure 4).
STEP 13. Install the B&M Cast
Aluminum Rear End Cover on the
axle housing using a supplied bolt
and washer at a bottom hole on the
cover so it can be used as a guide.
STEP 14. Install the rest of the
supplied bolts and washers and
torque to
25 ft/lb for 3/8”-16 bolts or
15 ft/lb for M8x1.25 bolts in a
crisscross pattern.
STEP 15. Screw in the two load
bolts by hand until they touch the
bearing caps. Torque the load bolts
to 5 ft/lb max.
NOTE: Do not over torque the
load bolts as you run the risk of
distorting
the bearing caps,
creating abnormal wear and
premature failure.
STEP 16. Apply a very small amount
of RTV on the threads of the load
bolts and install the two supplied
jam nuts on the load bolts. Torque
the jam nuts to 5 ft/lb.
STEP 17. Install the axle housing
drain plug (if equipped) and torque
to 20 ft/lb.
STEP 18. Install the supplied
magnetic 1/4” NPTF drain plug on
the B&M Cast Aluminum Rear
End Cover and tighten (See Figure 5).
STEP
19. Fill with factory
recommended gear oil using the
B&M Cast Aluminum Rear End
Cover fill plug hole (See Figure 5).
Add gear oil until oil runs out of the
axle housing fill hole.
STEP 20. Install the axle housing fill
plug and torque to 20 ft/lb.
STEP 21. Install the supplied
1/2”
Figure 2
Axle housing surface
Figure 3
Load bolt