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Borg-Warner T90 Transmission Parts

1941-1971 Jeep CJ

The Borg-Warner T90 transmission was one of the most common transmissions found in 1946 to 1971 Jeeps. Because of its long production span, it is nearly legendary. It is a good transmission when well maintained and has often been adapted to V8, V6 and I4 power.

The T90 was the improved progeny of the T84, of military MB & GPW fame. The T90 was the standard three-speed as found in CJ Universals, Utility Trucks & Wagons, J Series and Forward Control Trucks.

Click on Images / Number Item's to Find Parts in Table Below

Transmission Overhaul Kit Internal Parts Kits Internal Parts Kits Gear Kit & Case Gear Kit & Case Gasket Kit Small Parts Kit Small Parts Kit Small Parts Kit Small Parts Kit T90 3 Speed Transmission Top Cover Assembly Transmission Bearing Retainer Transmission Bearing Mainshaft Bearing Transmission Bearing Adapter Input Shaft Mainshaft Mainshaft Nut Mainshaft Felt Seal Mainshaft Washer Mainshaft Bearing Spacer 2nd & 3rd Synchronizer Assembly Blocking Ring Synchronizer Key Synchronizer Spring 2nd Speed Gear Cluster Gear Countershaft Counter Shaft Countershaft Cluster Gear Cluster Gear Spacer Reverse Idler Shaft Reverse Idler Gear Reverse Idler Shaft Plate Shifter Boot Shift Knob Mount Mounting Support Kit Transitional Overhaul Kit Gasket Kit Mounting Support Kit Mount Shift Knob Shifter Boot Transmission Top Cover Assembly

Item Image Name / Sku Year Range Comments Add To Cart
1 Transmission Overhaul Kit

T90BSG

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1941-1971 Includes Front & Rear Bearings

$69.99

2 Internal Parts Kit

T-90K

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1945-1971 (See Extended Info)

$559.99

T90 Internal Parts Kit

T-90K-L

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1941-1971 All 475 (226) Truck & GM V8 Conversion CJ (11.5" Input Shaft)

$549.99

Gear Kit + Case

T-90KS-L

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1941-1971 GM V8 Conversion Engine CJ (11.5 Input), Long Shaft

$696.99

5 Gasket Kit

923301

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1941-1971

$5.99

6 Small Parts Kit

922607

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1945-1971

$25.97

7 T90 3 Speed

642754

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1941-1971

$203.99

8 Transmission Top Cover Assembly

946111

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1941-1971 With Rails & Forks

$149.99

9 Transmission Bearing Retainer

640422

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1941-1971 All 4 Cylinders / Front

$26.99

10 Transmission Bearing

8136643

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1941-1971 For Input Shaft / Front

$26.99

11 Mainshaft Bearing

8136619

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1941-1971 Rear

$29.99

12 Transmission Bearing Adapter

644552

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1941-1971 Rear

$19.99

13 Input Shaft

640428

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1941-1971 With 9 1/16 Length & 18 Teeth

$57.99

Maindrive Gear

643246

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1941-1971

$72.99

Input Shaft Gear

906203

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1941-1971

$115.99

14 Mainshaft

640390

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1941-1971

$69.97

15 Mainshaft Nut

940970

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1941-1971

$4.99

16 Mainshaft Washer

A1410

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1941-1971

$0.99

16a Mainshaft Felt Seal

645980

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1945-1949

$0.99

17 Mainshaft Bearing Spacer

643621

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1941-1971

$7.99

18 2nd & 3rd Synchronizer Assembly

640391

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1941-1971 Includes Blocking Rings

$76.99

19 Blocking Ring

640397

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1941-1971 Each

$9.99

20 Synchronizer Key

640395

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1941-1971 3 Needed

$1.99

21 Synchronizer Spring

640394

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1941-1971 2 Needed

$1.99

22 2nd Speed Gear

906197

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1941-1971 With Bushing

$52.99

23 Cluster Gear Countershaft

906199

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1941-1971 33 Teeth

$59.97

24 Counter Shaft

640412

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1941-1971

$9.99

26 Countershaft Cluster Gear

906200

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1941-1971 With 33 Teeth

$154.97

Countershaft Cluster Gear

643702

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1941-1971 With 35 Teeth

$139.99

27 Cluster Gear Spacer

802414

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1941-1971

$2.99

28 Reverse Idler Shaft

640420

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1941-1971

$14.99

29 Reverse Idler Gear

640417

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1941-1971 With Bushing

$49.99

30 Reverse Idler Shaft Plate

937459

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1941-1971

$1.99

31 Shifter Boot

907107

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1941-1971

$6.99

32 Shift Knob

929393

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1941-1971 Without Pattern

$6.99

33 Mount

A6156

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1941-1971 Rear

$12.99

Transmission Mount

8126799

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1941-1971 Rear

$13.99

34 Mounting Support Kit

926671K

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1941-1971 With Bolt & Insulators / Rear

$7.99

Years Covered:  1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970 and 1971

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