The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - How to Install a 4L80E into 1967

**Accelo** · 07-18-2022, 01:35 PM

Yesterday I confirmed the accuracy of my speedometer and it was right on according to my phone's GPS application. I was very happy with the results and it works even when you don't have satellite access because of trees or hills. LOL.

07-18-2022, 01:35 PM	#17
Accelo Senior Member Join Date: Mar 2015 Location: washington Posts: 2,198	Re: How to Install a 4L80E into 1967 - 72 C10 / C20 Yesterday I confirmed the accuracy of my speedometer and it was right on according to my phone's GPS application. I was very happy with the results and it works even when you don't have satellite access because of trees or hills. LOL.