S130/Transmissions php

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XenonZcar.com - 280ZX S130 Transmission Differences

In the 1979 to 1983 S130 280zx there was six transmissions that were offered. Below you will find the differences and specifications.

>Manual Transmissions

Datsun/Nissan made several 4 and 5-speed manual transmissions available in the second generation Z car or S130. The 1981-1983 FS5W71B is a "close ratio" five-speed transmission, while the FS5R90A 5-speed found in the 1983 280ZX Turbo is a "wide ratio" transmission. Close ratio transmissions are preferred for road racing as they allow the driver to maintain a tighter rev range between gears compared to wide ratio versions.

Finding the "optimum" transmission for your car all depends on what you are wanting from your car. For most people, the "best" transmission is what is already in your car.

You can tell the difference between the FS5W71B and the FS5R90A by the shifter mounting.


Gear Ratio / Transmission Model	1979 F4W71B	1979-1980 FS5W71B	1981-1983 FS5W71B	1983 FS5R90A
1st	3.321	3.321	3.062	3.500
2nd	2.077	2.077	1.858	2.144
3rd	1.308	1.308	1.308	1.357
4th	1.00	1.00	1.00	1.00
5th	N/A	0.864	0.745	0.780

Throw Out Bearing Differences

Throughout the years, there were different throw out bearing sizes used in the S30-S130 cars. The image below will explain the differences.


Automatic Transmissions

There are two Automatic Transmissions that were offered in the S130. They were the 3-speed 3N71B and L3N71B. Both are fully automatic units consisting of a 3-element hydraulic torque converter, two planetary gear sets, two multiple-disk clutches, a multiple-disk brake, a band brake, and a one-way sprag clutch.

Other than the number of clutch plates, the transmissions are the same. The chart below explains the differences.

Category	L28E	L28ET
Model Code Number	X6703	X2770
Torque Converter Stamp	GH	A
High-Reverse Clutch (Front)
Number Of Drive Plates	3	4
Number Of Driven Plates	5	5
Clearance mm (in)	1.6 - 2.0 (0.063 - 0.079)	1.6 - 2.0 (0.063 - 0.079)
Retaining Plate Thickness	5.0 - 6.2 mm (0.197 - 0.244)	31567-X2900 to 31567-X2906
Forward Clutch (Rear)
Number Of Drive Plates	6	6
Number Of Driven Plates	6	6
Clearance mm (in)	0.8 - 1.6 (0.031 - 0.063)	0.8 - 1.6 (0.031 - 0.063)
Retaining Plate Thickness	4.80 mm (0.1980 in)	4.80 mm (0.1980 in)
Low and Reverse Brake
Number Of Drive Plates	5	7
Number Of Driven Plates	5	7
Clearance mm (in)	0.08 - 1.25 (0.0315 - 0.063)	0.08 - 1.25 (0.0315 - 0.063)
Retaining Plate Thickness	7.8 - 8.8 mm (0.307 - 0.346)	31667-X0500 to 31667-X0505
Brake Band
Big Diameter	64 (2.52)	72 (2.83)
Small Diameter	40 (1.57)	44 (1.73)
Control Valve Assembly
Strainer Stamp	MEM	TRBK
Governor Assembly
Governor Mark	M33	M33
Stall Revolution
RPM	2000 - 2300	2400 - 2700

Changing of the gear ratios is fully automatic in relation to car speed and engine torque input. Below you will find Identification information of the automatic unit.

Sources Used

• 1979-1983 280ZX Nissan Factory Service Manuals