Also 6 speed? Let me get my head round this, you gutted a factory 5sp mk1 box,
Basically the Celica 6 speed and the Mk1 box are both C series transmissions, so i just used the Mk1 bellhousing section, gutted all of the Mk1 internals, put the Celica bearing races from the Celica bellhousing into the Mk1 bellhousing
(no mods), and then dropped the complete Celica internals into the Mk1 bellhousing. The centre case is Celica, as is the end casing where 5th and 6th live.
The Mk3 Mr2 gearbox is also a C series
(don't you just love Toyotas intercompatability, new word i just invented) so the LSD from a Mk3 fits into the Mk1/6speed casings, again no mods, just use the Celica crown wheel on that diff to keep it all correct. Finally the Mk3 6th gear pair fitted instead of the Celica 6th set.What you should end up with is Mk1 gearbox utopia, all of the best bits from every C series transmission all in one unit.
The only thing that needs modifying will be the gear cable bracket, i will need to make one of those up in situ when the box gets fitted, but my original Mk1 cables will work on the 6 speed and using the Celica box means the linkages are on the correct side.
Driveshafts can either be Mk2 NA shafts
(so one long and one short) which will plug and play into box and hubs (again no mods), or as i plan to do use a Celica supported shaft on the long side, with a bearing carrier bracket on the 4a-ge to give an equal length shaft setup.I will be making jigs for both the axle bracket and gear cable bracket should anyone wish to copy it.
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