My truck ( '88 rcsb ) came with a 305 , 400 trans. , and a 3.08 gear. After a 350/ 700R4 swap, it was still a dog off the line. Got a 3.73 posi from the boneyard- what a difference! Money well spent!!
Thanks for input everyone, but I'm thinking I must have the VSS. If it was the cable drive , wouldn't I be able to change the plasiic gears and fix the stock speedo error? I'll check for sure when I get home, but I don't think I have the cable.
I changed the trans to a 7ooR4, will the sensor work with that? And the convertor box will solve my speedo issue? are there instructions for hooking up the sensors and the tach? I know it' s a lot of questions, but I'm not a real mechanic, just a decent parts-changer who can follow directions...
Have a technical question about the speed sensor , I've got an '88 c1500, I've changed the rear end from a 3.08 to a 3.73. My stock speedo is off now roughly 10mph. if I install this speedo, will I still have the same issue?