I have an early AP1 with original engine and rear end. I have replaced the transmission with an AP2 unit. It does not seem that I am getting correct speedometer readings. Is there a way to correct the errors? Any help would be appreciated. Thanks in advance.

 

hmm...i didn't know that the swap would mess up speedo calibrations...if it's not due to install error, then you can get a yellow box

 

Thanks, It seems to be off, I'll take it out tonight with my GPS and see if they match. Where do I get a "yellow box"?

 

modifry.com - Bob sells them on his website. Keep in mind it only corrects for the speedo reading FASTER than your GPS, not slower...