B&M Racing Nodular Iron Rear Differential Cover Installation guide
- Type
- Installation guide
Rev 11/06/18 Page 1 of 3
www.bmracing.com
Technical Support (707) 544-4761
Installa on Instruc ons for
12313
DIFFERENTIAL COVER REAR
2018 WRANGLER JL
FITS: DANA M220
DANA 44 ADVANTEK
REAR AXLES
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12X
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12X
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1
ITEM PART NO. DESCRIPTION QTY.
1 2000312 Iron Rear Diff eren al Cover 1
2 1601019 Diff eren al Cover Dips ck 1
N/A 12313BA Hardware Pack includes: 1
3 3401151 O-Ring #-207-S-70 1
4 3401128 Screw M8-1.25X25 SOC HD Stainless 12
5 3401479 ⁄" AN 960 18-8 SS Washer 12
6 3401482 ⁄" NPTF Hex Socket Magne c Plug 1
12313
Rev 11/06/18 Page 2 of 3
www.bmracing.com
Technical Support (707) 544-4761
4. Remove and retain gasket from diff eren al cover;
wipe it clean and dry. Then clean moun ng surface
on front diff eren al.
5. Place (x12 ea.) washers (5) onto screws (4) as
shown.
1. Please take a moment to read and understand
these instruc ons before installing your purchased
performance kit. Use parts drawing and list to
verify kit contents.
3. Place drain pan under rear diff eren al where it can
catch fl uid. Remove factory plug and allow fl uid
to drain. Then remove bolts (x12) and diff eren al
cover.
Install Rear Diff eren al Cover:
5
4
REMOVE FACTORY COMPONENTS:
OVERVIEW:
REQUIRED MATERIALS
• Tefl on tape
• Drain Pan
• Transfer Pump
• Diff eren al Fluid
This B&M Diff eren al Cover provides increased fl uid
capacity and has a thick nodular cast iron construc on
to increase case rigidity. The magne c drain plug allows
regular gear oil changes and limits ferrous debris from
circula ng in the axle. It also features a built in dips ck
so you can maintain and check your fl uid level any me.
INSTALL TIME: APPROXIMATELY 1 HOUR
WARNING:
Avoid serious burns! Allow vehicle me to cool before
handling any diff eren al assembly components.
WARNING:
Never work under a vehicle supported only by a jack.
2. Raise vehicle up on a hoist or rack to working
height. If you don’t have access to a hoist or rack,
support vehicle with jack stands.
12313
Rev 11/06/18 Page 3 of 3
www.bmracing.com
Technical Support (707) 544-4761
9. Refi ll diff eren al fl uid (specifi ed by vehicle’s
manufacturer) to fi ll line. Check fl uid level using
dips ck. Once it has been fi lled, re-install dips ck.
6. Install o-ring (3) onto dips ck (2). Wrap drain plug
(6) with Tefl on tape (about 2 wraps).
7. Place factory gasket (removed step 4) onto
rear diff eren al cover (1). Secure them to rear
diff eren al using screws (x2) on both sides as
shown.
8. Install factory plug (removed step 3) and remaining
screws (x10) to secure front diff eren al cover then
install drain plug.
1
NOTE: Add diff eren al fl uid slowly using transfer pump.
MAIN OFFICE:
100 Stony Point RD., Suite 125
Santa Rosa, CA 95401
Technical Service: (707) 544-4761
Monday – Friday: 7:30 am to 5:00 pm Pacifi c Time
(Closed Saturday and Sunday)
NOTE: B&M Racing maintain a highly trained technical
service department to answer your technical ques ons,
provide addi onal product informa on and off er
various recommenda ons.
Congratula ons, the installa on of your B&M Rear
Diff eren al Cover is now complete!
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