Hi I have fitted a E153 series 3 gear box to a 1990 sw20 with mechanical speedo & instrument cluster what are my options to make the speedo work woant to maintain original cluster ???

On my car I've swapped the Speedo drive from a 1990 e153 into a gen3 e153 everything else as per normal. Of note though the transmission has been rebuild and I'm unsure of which gear is on the diff but there's no meshing issues in my case.

Mechanical Cluster = cable driven, mechanical speedo sensor / cog in early gen gearbox, blue speedo ring pre dec 1991.

Electronic Cluster = wiring, electronic speedo with electronic cog in late gearbox, white speedo ring.

I can look when home with my gearboxes that are apart. Maybe solutions, open gearboxes and swap rings (unlikely answer), or need an electronic cluster/conversation.

Hopefully Falcon sees this post as very knowledgeable in gearboxes.

I swapped a 1994 JDM turbo box into 1990 JDM turbo car. Just removed the mech drive speedo sensor from old box and inserted into new box.

Perfect fit and everything works as normal.

Cheers

Artmr2 - talking from experience is as good as it gets :)

The 1990 e153  speedo drive ....is it fitted the the box from the inside out ?
Surely i wouldn't need the dropnthe engine and gear box to replace ?

It is held in by one bolt from memory and just pulls out of the gearbox. Takes a few seconds/minutes. No need to disassemble the car :)

Cheers