56-Series Transmission Parts

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Category: Transmission

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For an overview, see 56-Series Transmission

Contents 1 Overview 2 Synchros 3 Rebuild Kit 4 Case 5 Breather 6 Extension 7 F4W56 7.1 Reverse Lamp Switch 7.2 Counter Gear 7.3 Bearings 7.3.1 Counter Shaft Ball Bearings 7.3.2 Counter Shaft Needle Bearing 7.3.3 Input Shaft Ball Bearing 7.3.4 Main Shaft Bearing 7.4 Seals 7.4.1 Input Shaft Seal 7.4.2 Output Shaft Seal 8 F4W56A 9 F5C56 9.1 Counter Gear 9.2 Gear Set 9.3 Seals 9.3.1 Input Shaft Seal 9.3.2 Main Shaft Seal 9.4 Nissan Competition 10 Extension Housing Bushing

Overview

56A 4-speed

All the parts of a 56A 4-speed

Typical rebuild replacement parts (Seals, bearings and synch rings)

Synchros

4-speed and 5-speed synchronizers are very different. 4-speed uses synchro baulk rings. 5-speed has baulk nubs on the hub itself.

See main article: Synchros

Rebuild Kit

Timken Rebuild Kits
TRKFN310 F4W56A

Case

The case is the front part of the transmission (the "bell housing"). The case for 4-speed and 5-speed looks the same, but has different part numbers. Note that different years and different markets added changes to the case.

F5C56A

RHD (JDM Catalog)
* bell-crank linkage
* very light ribbing
  32100-18000 CASE-transmission 3-speed, 4-speed B10
  32100-H0100 CASE-transmission 3-speed  B10 <> 32100-18000

32100-H1000 CASE-transmission 3-speed, 4-speed B110 (56L)
* light ribbing
32100-H7230 CASE-transmission 5-speed B110 GX-5
32100-G1030 CASE COMP.-transmission 3-speed, 4-speed B120 (56A)
32100-H5035 CASE-transmission 4-speed/5-speed B210 1975 < 32100-H5030 56A
32100-H5030 CASE-transmission 3-speed B210 1975-, 4-speed/5-speed B210 (from 7503) 56A
32100-H7421 CASE-transmission 4-speed B210, B310 1976-
32100-G1123 CASE-transmission 4-speed B120 SB 7510-
32100-G1124 CASE-transmission 4-speed B120 LB 7510-

LHD (USA catalog)
32100-H1600 CASE-transmission 4-speed B110 LHD to 0970
32100-H1630 CASE-transmission 4-speed B110 LHD from 1070-
32101-H3900 CASE-transmission 4-speed B110 LHD from 0671-
32101-H3930 CASE-transmission 4-speed B110 LHD from 0172-
32100-H6200, 32100-H6201 CASE-transmission 4-speed B210 LHD to 0874 (A13 engine)
32100-H6127 CASE-transmission 4-speed B210 LHD USA
32100-H8511, 32100-H8529 CASE-transmission 4-speed B210 LHD CANADA
* Has an electrical switch in case (reverse)

Front Cover 32110-H1000 (56-series, 71-series

Adapter Plate (sandwich plate)

Breather

1976-1994 F4W56A breather for B120

Album 26649

Original version is the large white cap
Album 23177

Extension

variations:
* double-mount with top switch drilled & tapped (8910-)
* double-mount w/o top switch (? B310?) 
* 56L with bushing & small oil seal (B110 early)
* 56L with large oil seal (B110 late)
* 56A with internal w/o oil dam (early B120???) 
* 56A with internal oil dam

F4W56

Also see: Index#Power_Train

* 32010-H1652 ASSY-TRANSMISSION(F4W56)
* 32010-H3551 ASSY-TRANSMISSION (F4W56) 0972-
*: replaces 32010-H1652
* 32010-H3950 ASSY-TRANSMISSION(F4W56E)	0671- 
* 32010-H3951 ASSY-TRANSMISSION (F4W56L) 0172-
* 32010-H3953 ASSY-TRANSMISSION (F4W56L) 0972-0373
*: replaces 32010-H3951
* 32010-H3963 ASSY-TRANSMISSION (F4W56A) 0473-  
*: replaces 32010-H3953

Selector rod pins
Album 17840 Album 17841 Album 17842

Reverse Lamp Switch

See Reverse Lamp Switch

Counter Gear

Cluster Gear
* 32210-24900 GEAR-COUNTER 29T,25T,19T,13T B10, -0373 B110 (F4W56L)
  
* 32210-G1100 GEAR-COUNTER 29T,25T,19T,13T B120 ALL, CAR 0473-0874 (F4W56A)
*: USA B110, starting April 1973
*: Used through 1982 (listed for A12-powered B210 & B310)

Bearings

BALL BEARINGS
COUNTER SHAFT, FRONT 
* 32219-18000 (56L only)
COUNTER SHAFT, REAR 
* 32223-24900 -7805 (56L & 56A)
* 32223-H7400 7806-8109
* 32223-H8500 8110-
INPUT SHAFT (MAIN DRIVE)
* 32203-18000 (56L & 56A)
MAIN SHAFT 
* 32273-24900 (56L)
* 32273-G1000 (56A)

32273-H7300 ???

NEEDLE BEARINGS
32219-G1000 COUNTER SHAFT, FRONT (56A only)
32272-18000 BEARING-pilot, main shaft (56L & 56A)
32264-24900 gear (1 or 0), main shaft
32264-18000 gears (2 or 3) 32264-H1000

BUSHING
32283-24901 BUSH-GEAR REVERSE IDLER (56L)
32283-G1100 BUSH-GEAR REVERSE IDLER (56A)
32253-18000 BUSH-1ST GEAR

Bearing Comparison
* 63/71 - TIMKEN 306L F4W63, F4W63A, F4W63L, F4W71B, R4W71A
* 56/60 - TIMKEN 305L F4W56A, F4W56L, F4W60, F4W60L, F4WF60, F4WF60L

Counter Shaft Ball Bearings

RockAuto.com

56L Front Countershaft Bearing
Nissan 32219-18000 BEARING-BALL COUNTER SHAFT
* Timken 305AG (F4W56L)
** also fits Center F4W71B, Rear R4W71A
* National 305 (Aichi F4W56L) $24.89
** Ball Bearing
** Outer Race Radius=0.0402"
** Bore=0.9843"
** Outer Diameter=2.4409"
** Width=0.6693"
** Inner Race Radius=0.0402"

Rear Countershaft Bearing (56L & 56A) -7805 
Nissan 32223-24900 BEARING-ball counter
* Timken 303SS (F4W56L) $17
* National/BCA 303SS (Aichi F4W56L)
** Ball Bearing
** Outer Race Radius=0.0402"
** Bore=0.6693"
** Outer Diameter=1.8504"
** Width=0.5512"
** Inner Race Radius=0.0402" 

Rear Countershaft Bearing (56A) 7806-8109
Nissan 32223-H7400  
* superseded by 32223-H8500

Rear Countershaft Bearing (56A) 8110-
Nissan 32223-H8500 Bearing Ball $22 USD
rockauto.com
* National 205 $12.10
* Timken 205BB (F4W56A) $13.00
** Ball Bearing
** Width: 0.5906"
** Bore=0.9843"
** Outer Diameter=2.0472"

Counter Shaft Needle Bearing

56A Front Countershaft  
* Nissan 32219-G1000 BEARING-NEEDLE COUNTER SHAFT
* Timken 304WB (F4W56A)
** also fits F4W71B front, F4W71A front
** Cone Bearing
** Bore=0.787"
** Outer Diameter=2.047"
** Width=0.591"

Input Shaft Ball Bearing

full

Rockauto.com
Main Drive Gear Ball Bearing (input shaft 56L & 56A)
32203-18000 BEARING-ball, main drive gear
* superceded by 32203-E9800 $25.45 USD
* Timken 305L Front; F4W56L $27.79
* National 305L Aichi F4W56L 
** Ball Bearing
** Outer Race Radius=0.0402"
** Bore=0.9843"
** Outer Diameter=2.4409"
** Width=0.6693"
** Inner Race Radius=0.0402"

* Timken 306L Front; F4W56A, Front; R4W71A
** Ball Bearing
** Bore=1.1811"
** Outer Diameter=2.8346"
** Width=0.748"

Main Shaft Bearing

Rockauto.com 

56L Main Shaft Ball Bearing
Nissan 32273-24900 BEARING-main shaft $21 USD
* SKF 6305J Main Shaft Bearing $24.79
* Timken 305L

56A Main Shaft Ball Bearing
Nissan 32273-G1000 BEARING-ball, main shaft $48 USD

Nissan 32273-H7300 $61 USD

32265-H7200 WASHER-THRUST SYNCHRO HUB 4 SPEED

Seals

* SKF Seal 99098 SKF Part # 99098
** http://www.rockauto.com/catalog/x,carcode,1208483,parttype,14200

Input Shaft Seal

* Nissan 32113-H3100 SEAL-OIL FRONT COVER 4 SPEED 0971-
** supercedes 32113-13200
* http://www.rockauto.com/catalog/x,carcode,1208483,parttype,10065
* Timken 222540 F4W56L, F4W56A $2.84
* National 710316 F4W56L 
** Oil Seal: Nitrile
** Shaft Size=0.984"
** Housing Bore=1.575"
** Outer Diameter=1.583"
** Width=0.315"
* Timken 710417 F4W63, F4W63A, F4W63L
* Timken 1981 R4W71A
* Timken KWK99098 Kwik Sleeve repair F4W56L, F4W56A
* National/BCA 99098 Redi-Sleeve $27.79
** .982" x .986" x .313"

Output Shaft Seal

Which seal you need depends on which type of Driveshaft yoke is being used.

Shrouded, unshrouded, lipped
 

45mm bore RockAuto.com
* Nissan 32136-G1001 SEAL-OIL REAR EXTENSION 4 SPEED 1072-
* TIMKEN 2016 F4W56A, F4W56L, F4W60, F4W60L, F4WF60, F4WF60L $11.04
* NATIONAL 2016 Aichi F4W56L $15.87
Material        Nitrile 
Shaft Size      1.181" 30mm
Housing Bore    1.772" 45mm
Outer Diameter  1.78"  45.2mm
Flange Diameter 2.441" 62mm
Width           0.591" 15mm

* Nissan 32136-H3100 SEAL-OIL REAR EXTENSION > 32136-18001
* Nissan 32136-H3100
* SKF 11618

32136-18000

32136-G1001 60mm flange, 45 mm bore
  

F4W56A

4-speed Heavy-Duty (Truck from 1971, passenger cars from April 1973)

Album 22986

Gear with integrated dog teeth and synchro cone
Album 22987

Gear Train

main shaft needle bearing
Album 22976 Album 22975

main shaft bearing
Album 22974

56A gear train (main shaft, input shaft, and counter shaft)
Album 22977

Tail housing and shifter parts
Album 22991

Synchronizer Hubs and Coupling Sleeve, synchronizer springs and shifting inserts
Album 22990

Synchronizer hub is splined to shaft, constantly spinning
Album 22973

F5C56

album

Counter Gear

album

32213-H7200 GEAR-counter B110
32213-H7201 GEAR-counter B210
32210-H7200 GEAR-1st counter 

Gear Set

GX-5 parts
32213-H7200 Counter
32220-H7200 Counter 1st
32200-H7200 Main Drive Gear
32230-H7200 1st Gear
32250-H7200 2nd Gear (28T)
32260-H7200 3rd Gear (27T)
32270-H7200 4rd Gear

B210 F5C56A
32213-H7201 Counter
32220-H7200 Counter 1st
32200-H7200 Main Drive Gear
32230-H7200 1st Gear
32250-H7200 2nd Gear (28T)
32260-H7200 3rd Gear
32270-H7200 4rd Gear

32202-H7220 Main Drive Gear (23T)
32230-H7200 1st Gear (32T)
32250-H7200 2nd Gear (28T)
32262-H7200 Ultra Close Ratio 3rd Gear (27T)
32272-H7220 Ultra Close Ratio 4rd Gear (25T)

The various F5C56A Gearset shafts (click to open in new window)

1st Gear Counter
album

Gear Diagram (open in album: click)

Seals

Input Shaft Seal

Nissan 32113-H3100 SEAL-OIL FRONT COVER F5C56A

Main Shaft Seal

Nissan 32136-G1001 SEAL-oil, rear extension F5C56A

Nissan Competition

• 32010-H7251 TRANSMISSION ASSY B110 GX-5
• 32010-H7251P TRANSMISSION ASSY Nissan Competition OPT 1
• 32010-H7220N TRANSMISSION ASSY Nissan Competition OPT 2
• 32010-H5250 TRANSMISSION ASSY B210 GFK
• 32010-H5250 TRANSMISSION ASSY B210 GFK from 73-10
• 32010-H5251 TRANSMISSION ASSY B210 GFK ratiol tire
• 32010-H5253 TRANSMISSION ASSY B210 GFK from 73-10 ratio tire

Extension Housing Bushing

Nissan part number 32132-18000, which is NLA but you may be able to find one NOS.

Discussion: worn part on gearbox end.Need advice please

Perhaps the best option is to find another 4-speed and swap the tail housings.

When you slide the slip yoke of your tailshaft into the rear of your gearbox, not only does it match up the splines and slide over the output shaft, it also slides into a bushing that's there to keep it centered and running true.

pjz said:

My friend found that Federal Mogul part # FP2204Y can be a good repair for damaged tail housing bushings. It is a few thousands of an inch bigger diameter, so it will easily press into your tail housing, even one where the bushing is pounded out, but will stay in place.

The FP2204Y is really a piston pin bushing for large diesel engines. You will have to drill and chamfer a second oil hole and with a Dremmel tool, you will have to cut spiral oil grooves. Copy the patten on your old bushing. [Drill the oil hole before installation. Then cut the oil grooves after installation. Clamp the tailhousing in a bench vice.]

ONCE installed you will notice that it is too small of a diameter for your slip yoke. Use an adjustable ream to size it to your slip yoke, or use a high speed, soft rotating abrasive drum wheel. A brake cylinder hone will work, but you will be honing for 24 hours or longer. You are at the proper size when a slip yoke will fall freely into the tailhousing. I put the tailhousing vertical and let the slip yoke fall. Be sure NOT to use a slip yoke that is worn undersized.

FP2204Y is 50% longer than a stock bushing, so there is more support area for the drive shaft (prop shaft) slip yoke. Stock oil seal works fine.

They are available on-line and inexpensive.

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