240 Speedo signal in GT
So it's been spoken about a bit but I'm not finding a solution other than "fit a later dash and speedo" which I don't want to do. 1980 242GT running a b23ET with LH2.4 transplant. Car runs great however it's just plain antisocial albeit fun watching in the rear view as terrified pedestrians jump into the bushes in fear whenever I back off due to the lack of a speed sensor in the diff and the accompanying signal to the speedo and wiring from that to the ecu causing SNAP, CRACKLE and POP.
I've got a later diff to go in to provide the signal and have a later speedo too but want to retain the rsport cluster so wondered if there was a work around anyone knew of?