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Does anyone know what the stock driven gear for the speedometer is in the 1982 Corvette 700r4 transmissions?
I pulled a 42 tooth out of my transmission earlier. The reason why I was asking was because this was a rebuilt transmission I purchased about a year ago. It's not my stock unit, and I do think it came out of a vehicle later than 82.
The speedometer seems accurate.
But I'm installing a TPI set-up on my 82 and am installing a cable driven speed sensor that installs in the transmission.
GM made two speed sensors of this type, using either a 34-39 tooth gear or 40-45 tooth gear.
I bought my harness, ecm, and speed sensor from a company called TPI Parts. I gave him my stock tire height and rear end ratio and he sent me the 34-39 tooth speed sensor based on my calculations. But after I pulled out the 42 tooth gear out earlier, I'm afraid I might have the wrong sensor.
Either way I'm pretty sure i can send this back get the right sensor.
What would happen if I installed a 39 tooth gear instead of a 42 tooth?
Thanks!
I pulled a 42 tooth out of my transmission earlier. The reason why I was asking was because this was a rebuilt transmission I purchased about a year ago. It's not my stock unit, and I do think it came out of a vehicle later than 82.
The speedometer seems accurate.
But I'm installing a TPI set-up on my 82 and am installing a cable driven speed sensor that installs in the transmission.
GM made two speed sensors of this type, using either a 34-39 tooth gear or 40-45 tooth gear.
I bought my harness, ecm, and speed sensor from a company called TPI Parts. I gave him my stock tire height and rear end ratio and he sent me the 34-39 tooth speed sensor based on my calculations. But after I pulled out the 42 tooth gear out earlier, I'm afraid I might have the wrong sensor.
Either way I'm pretty sure i can send this back get the right sensor.
What would happen if I installed a 39 tooth gear instead of a 42 tooth?
Thanks!