6sp to replace 5sp in 89 GLX

[ZI-4 Aristo]

Will a 6sp trans from a Blacktop engine fit my 4A-F engine to replace its 5sp trans.?

[bluemaumau]

anything can fit.

its c series so it shouldnt be too much of a mission

[ZI-4 Aristo]

Thanks. Will I have issues with activating the speedo with a 6sp box?

[AceSniper]

should just plug in, if its cable drive swap the drive over

[sergei]

They use different left mount to "normal" C series gearbox, you will need to butcher mount support plate (cut,bend,drill) to use your mount.
Also you might have problems with gear shifter as with 6 speed you need more left to right movement (nothing a file cant fix).
The speed sensor/cable thing should bolt on, the reverse switch might use different plug, but thats not major, starter mounting might be a problem (although I can't remember if it has space for both locations or not)

[ZI-4 Aristo]

Thanks for the help guys. Much appreciated.