MonaroParts.com
Aussie
4 speed part numbers
The following Australian 4 speed parts listed are those that differ between the different gearboxes and different generations of the boxes. All of the remaining parts are common between all boxes.
Available Aussie 4 speed gearbox summary:
M20 4/6cyl. Ratios: 3.05:1, 2.19:1, 1.51:1, 1:1, 3.05:1 (rev).
M20 XU-1 Ratios: 2.54:1, 1.83:1, 1.25:1, 1:1, 2.54:1 (rev) - Also 1979 VB rally car.
M21 XU-1 Ratios: 2.54:1, 1.83:1, 1.38:1, 1:1, 2.54:1 (rev) - 1973 Homologated ratio set.
2.32:1, 1.65:1, 1.25:1, 1:1, 2.32:1 (rev) - 1973 Homologated ratio set.
M22 Ratios: 3.74:1, 2.68:1, 1.68:1, 1:1, 3.74:1 (rev).
M21 V8 Ratios: 2.54:1, 1.83:1, 1.38:1, 1:1, 2.54:1 (rev).
2.32:1, 1.65:1, 1.25:1, 1:1, 2.32:1 (rev) - L34 only.
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CLUTCH GEAR (4th) |
Oil seal style |
Part number |
Notes |
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M20 4cyl and 6cyl |
Oil slinger |
2813494 |
6cyl
only. Pre-dates 4cyl version. |
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Neoprene |
9930923 |
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M20 V8 |
Oil slinger |
2817577 |
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Neoprene |
9930925 |
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M20 XU-1 (3rd gear 2813491) |
Oil slinger |
2823544 |
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Neoprene |
2825927 and 9930927 |
Also
used with 1973 XU-1 M21 homologated ratio set with cluster 2813497 and
2813492 3rd gear. In M21 version gearbox ratios are identical
to the normal V8 M21. |
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M20 VB rally car (fine spline) |
|
9930926 |
Special
gearbox for Repco rally Commodores. Same ratios as M20 XU-1. |
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M21 |
Oil slinger |
2813495 |
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Neoprene |
9930924 |
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M21 LH SLR5000 L34 |
|
9939483 |
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M21 LJ XU-1 |
|
EREW-2395-1 |
1973
XU-1 homologated ratio set. Same ratios as LH L34. Uses cluster
9939484 and 3rd gear 2813492. |
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M22 (and M15 6cyl) |
Oil slinger |
7433832 |
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Neoprene |
9930921 |
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M15 V8 (can be used to |
Oil slinger |
2816743 |
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convert an M22 into a V8 M22) |
Neoprene |
9930922 |
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CLUSTER GEAR |
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Notes |
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M20 |
|
2813496 |
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M20 LJ XU-1, VB rally car |
|
2823899 |
Also homologated for LH L34 |
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M21 |
|
2813497 |
Also homologated for 1973 XU-1 |
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M21 LH SLR5000 L34 option |
|
9939484 |
Also homologated for 1973 XU-1 |
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M22 |
|
2820694 |
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1st GEAR |
|
2813489 |
Same
across all boxes |
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2nd GEAR |
|
2813490 |
Same
across all boxes |
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3rd GEAR |
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M20 |
|
2813491 |
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M21 |
|
2813492 |
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M22 |
|
2820696 |
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Reverse GEAR |
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M20 and M22 |
|
2813525 |
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M21 |
|
2813500 |
Unsure
if ultra rare XU-1 box with 2813497 cluster gear (L34 ratios) used this
reverse or 2813525 |
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CLUTCH SHAFT COVER |
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6cyl |
Oil slinger |
7439685 |
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Neoprene |
9930909 |
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V8 |
Oil slinger |
7436171 |
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Neoprene |
9930910 |
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M20 LH 1900 4cyl |
|
9930911 |
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MAIN CASE |
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Early (with split reverse idler) |
|
2813505 |
LC, LJ, Early HQ |
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Late |
|
2829795 |
Late HQ, early HJ, LH, LX |
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M37828 |
Late HJ, HX |
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9945747 |
HZ, WB, UC, VB-VK |
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REVERSE IDLER GEAR |
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Split (early) |
|
2813498 |
Front
half |
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2813499 |
Back
half |
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1-piece (late) |
|
2825988 |
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