Clark Axle Products

Clark Differentials & Axels

We have the Clark axle products you can’t find anywhere else!

Heavy Duty Transaxle specializes in rebuilt Clark differentials and axles. We have a large inventory of new, used, and obsolete Clark parts.

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Clark Axle Models

Series Numbers:

BD45-60
BD50-60
BD57000
BD71000
BD91000
BD101000
BD121000
D65200

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Clark Axle Features

Axle Features:

Air brakes
4 pinion washers
Replaceable axle shaft thrust washers
Spiral bevel ring gear
Replaceable sun-gear thrust washer
Doweled side-gear washer
Dual wheel hubs
Needle-roller bearings on planetary gear
Splash-action lubrication
Limited-slip, needle-roller on diff in BD121000

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Available Options

Optional Add-Ons:

Drive-through shaft on drop-gear carrier
Hubs for single-disc wheels
Inter-axle differential on BD57000 to BD101000
Upper torque rod brackets

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Service Parts

Available Service Parts:

Clark Axle Shaft
Clark Gears
Clark Spindle
Clark Planetary Ring Gear
Clark Planetary Hub Gear
Clark Planetary Pinion Shaft

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Clark Axle Specifications

Series	Carrying Capacity LBs (KG)	Available Ratio	Available Track Range IN (MM)	Min Rim (Dual) Size	Air Brake Size	Diff & Carr Ring Gear Dia IN (MM)	Planetary Gear Ratio
Series Number BD45‑60	Description Tandem 50,000 (22,680)	Ratio Range 9.14 to 22.35	Available Track Range 72 to 98.5 (1,828.8 to 2,502)	Minimum Rim Size 20	Air Brake Size 16.5 x 7 (419.1 x 177.8)	Diff & Carr Ring Gear Dia IN 13.875 (352.4)	Planetary Gear Ratio 3,529
Description GCW 155,000 (70,310)
Series Number BD50‑60	Description Tandem 50,000 (22,680)	Ratio Range 9.14 to 22.35	Available Track Range 73.62 to 100.12 (1,870 to 2,543)	Minimum Rim Size 20	Air Brake Size 16.5 x 7 (419.1 x 177.8)	Diff & Carr Ring Gear Dia IN 13.875 (352.4)	Planetary Gear Ratio 3,529
Description GCW 150,000 (68,040)	Available Track Range 74.12 to 100.62 (1,882.6 to 2,555.7)	Minimum Rim Size 24	Air Brake Size 20 x 7 (508 x 177.8)
Series Number BD‑57000	Description Tandem 60,000 (27,220)	Ratio Range 8.67 to 21.76	Available Track Range 90.12 to 100.12 (2,289 to 2,543)	Minimum Rim Size 20	Air Brake Size 16.5 x 7 (419.1 x 177.8)	Diff & Carr Ring Gear Dia IN 16.375 (416)	Planetary Gear Ratio 3,529
Description GCW 175,000 (79,380)	Available Track Range 90.62 to 100.62 (2,301.7 and 2,555.7)	Minimum Rim Size 24	Air Brake Size 20 x 7 (508 x 177.8)
Series Number D‑65200	Description Tandem 60,000 (27,220)	Ratio Range 8.67 to 21.76	Available Track Range 80.12 to 100.12 (2,035 to 2,543)	Minimum Rim Size 20	Air Brake Size 16.5 x 7 (419.1 x 177.8)	Diff & Carr Ring Gear Dia IN 16.375 (416)	Planetary Gear Ratio 3,529
Description GCW 175,000 (79,380)	Available Track Range 80.62 to 100.62 (2,047.7 to 2,555.7)	Minimum Rim Size 24	Air Brake Size 20 x 7 (508 x 177.8)
Series Number BD‑71000	Description Tandem 80,000 (36,290)	Ratio Range 9 to 22.6	Available Track Range 80.62 to 109.88 (2,047.7 to 2,791)	Minimum Rim Size 24	Air Brake Size 20 x 7 (508 x 177.8)	Diff & Carr Ring Gear Dia IN 16.375 (416)	Planetary Gear Ratio 3,666
Description GCW 250,000 (113,400)
Series Number BD‑91000	Description Tandem 100,000 (45,360)	Ratio Range 9 to 22.6	Available Track Range 86 to 111 (2,184.4 to 2,819.4)	Minimum Rim Size 24	Air Brake Size 20 x 7 (508 x 177.8)	Diff & Carr Ring Gear Dia IN 16.375 (416)	Planetary Gear Ratio 3,666
Description GCW 250,000 (113,400)
Series Number BD‑101000	Description Tandem 100,000 (45,360)	Ratio Range 11.46 to 28.77	Available Track Range 92 to 117 (2,336.8 to 2,971.8)	Minimum Rim Size 25	Air Brake Size 20 x 7 (508 x 177.8)	Diff & Carr Ring Gear Dia IN 16.375 (416)	Planetary Gear Ratio 4,666
Description GCW 300,000 (136,080)
Series Number BD‑121000	Description Tandem 120,000 (54,430)	Ratio Range 12.31 to 15.27	Available Track Range 106 (2,692.4)	Minimum Rim Size 25	Air Brake Size 20 x 7 (508 x 177.8)	Diff & Carr Ring Gear Dia IN 18.5 (470)	Planetary Gear Ratio 4,666
Description GCW 500,000 (226,800)

Series Number

BD45‑60

Description

Tandem 50,000
(22,680)

Ratio Range

9.14 to 22.35

Available Track Range

72 to 98.5

(1,828.8 to 2,502)

Minimum Rim Size

20

Air Brake Size

16.5 x 7

(419.1 x 177.8)

Diff & Carr Ring Gear Dia IN

13.875

(352.4)

Planetary Gear Ratio

3,529

Description

GCW 155,000

(70,310)

Series Number

BD50‑60

Description

Tandem 50,000

(22,680)

Ratio Range

9.14 to 22.35

Available Track Range

73.62 to 100.12

(1,870 to 2,543)

Minimum Rim Size

20

Air Brake Size

16.5 x 7

(419.1 x 177.8)

Diff & Carr Ring Gear Dia IN

13.875

(352.4)

Planetary Gear Ratio

3,529

Description

GCW 150,000

(68,040)

Available Track Range

74.12 to 100.62

(1,882.6 to 2,555.7)

Minimum Rim Size

24

Air Brake Size

20 x 7

(508 x 177.8)

Series Number

BD‑57000

Description

Tandem 60,000

(27,220)

Ratio Range

8.67 to 21.76

Available Track Range

90.12 to 100.12

(2,289 to 2,543)

Minimum Rim Size

20

Air Brake Size

16.5 x 7

(419.1 x 177.8)

Diff & Carr Ring Gear Dia IN

16.375

(416)

Planetary Gear Ratio

3,529

Description

GCW 175,000

(79,380)

Available Track Range

90.62 to 100.62

(2,301.7 and 2,555.7)

Minimum Rim Size

24

Air Brake Size

20 x 7

(508 x 177.8)

Series Number

D‑65200

Description

Tandem 60,000

(27,220)

Ratio Range

8.67 to 21.76

Available Track Range

80.12 to 100.12

(2,035 to 2,543)

Minimum Rim Size

20

Air Brake Size

16.5 x 7

(419.1 x 177.8)

Diff & Carr Ring Gear Dia IN

16.375

(416)

Planetary Gear Ratio

3,529

Description

GCW 175,000

(79,380)

Available Track Range

80.62 to 100.62

(2,047.7 to 2,555.7)

Minimum Rim Size

24

Air Brake Size

20 x 7

(508 x 177.8)

Series Number

BD‑71000

Description

Tandem 80,000

(36,290)

Ratio Range

9 to 22.6

Available Track Range

80.62 to 109.88

(2,047.7 to 2,791)

Minimum Rim Size

24

Air Brake Size

20 x 7

(508 x 177.8)

Diff & Carr Ring Gear Dia IN

16.375

(416)

Planetary Gear Ratio

3,666

Description

GCW 250,000

(113,400)

Series Number

BD‑91000

Description

Tandem 100,000

(45,360)

Ratio Range

9 to 22.6

Available Track Range

86 to 111

(2,184.4 to 2,819.4)

Minimum Rim Size

24

Air Brake Size

20 x 7

(508 x 177.8)

Diff & Carr Ring Gear Dia IN

16.375

(416)

Planetary Gear Ratio

3,666

Description

GCW 250,000

(113,400)

Series Number

BD‑101000

Description

Tandem 100,000

(45,360)

Ratio Range

11.46 to 28.77

Available Track Range

92 to 117

(2,336.8 to 2,971.8)

Minimum Rim Size

25

Air Brake Size

20 x 7

(508 x 177.8)

Diff & Carr Ring Gear Dia IN

16.375

(416)

Planetary Gear Ratio

4,666

Description

GCW 300,000

(136,080)

Series Number

BD‑121000

Description

Tandem 120,000

(54,430)

Ratio Range

12.31 to 15.27

Available Track Range

106

(2,692.4)

Minimum Rim Size

25

Air Brake Size

20 x 7

(508 x 177.8)

Diff & Carr Ring Gear Dia IN

18.5

(470)

Planetary Gear Ratio

4,666

Description

GCW 500,000

(226,800)

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