W Gearbox

Revision as of 08:42, 17 September 2015; view current revision
<-Older revision | Newer revision->

The W-series is a 4-speed or 5-speed manual transmission built by Aisin. It is super strong transmission which will just fit in the Datsun 1200 transmission tunnel.

Overview

W50 5-speed Steel Case (all others are alloy)
W55 5-speed 0.850 overdrive, 3.566 1st
W56 truck extra-low 1st gear 3.954 1st
W57 5-speed 0.861 overdrive, 3.285 1st
W58 5-speed 0.783 overdrive, 3.285 1st
W59 truck extra-low 1st gear 3.954 1st

W50
1973-1981 Celica, Carina, Corona, Supra, Hilux

W55
1981-1995 
2002-2005 USA Lexus IS300

W56
1983-1986 Supra Japan
1986 Crown
1986 Cressida
1982-1985 Celica with 21R engine

W58 (same as W57 except for 5th gear ratio)
1982-1998 non-turbo Supra, Celica, Cressida, Soarer
1982-1985 Celica USA
1992-1997 Lexus SC300

Swap Notes

3Rotor and Cameron_Datto have fitted W gearboxes to Datsun 1200.

To adapt to the Nissan A Engine:

• Cut & Shut
• Adapter Plate

album

• 3Rotor: remove the cross-member mounting pods in the tunnel, open up the shifter hole a bit to the back. Cameron had do to "some heating & beating" in the tunnel

topic

• Find/fabricate a 180mm clutch plate to fit the splines of the W

• Newer Ws must swap the electronic speed sensor for a cable drive

W50 Adapter Plate

The W50 Toyota 5-speed can be fitted to a Datsun A-series engine. Use an A-series automatic transmission bellhousing with an adapter plate to fit the W50 gearbox. The W50 is a non-alloy gearbox, and the thickness of the adapter plate would be different for any alloy W gearbox.

Bare adaptor plate to suit an A series auto bell housing and a W50 steel case Celica 5 speed

Adaptor plate bolted to Celica box, clutch fork pivot fitted.

Datsun 56A 4-speed verses a Celica W50 steel case 5-speed fitted with an A series auto bell housing and adaptor plate.

Above: A series 56A 4-speed
Below: W50 Celica 5-speed below. Modified Datsun clutch fork fitted to Celica thrust bearing. Slot cut through the side of an A series auto bell housing . Clutch fork retaining spring and clutch cable mount still to be made.

The input spline lines up exactly

The spigot fits into the back of the A-series crankshaft as per standard but a machined spigot bearing needs to be made to suit the Celica input shaft.

mods need to be made to the clutch fork , thrust baring carrier

A new cross member needs to be made , the tunnel needs a bit of a massage

the speedo cable matches up to the Celica box with no mods.

A clutch needs to be sorted out , a new spiggot baring needs to be made and a new tailshaft is needed.

funkeyman photos 

clubman adapter