The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Using an electronic speedo with TBI and 700R4?

mcbassin · 08-11-2010, 07:56 PM

Update:
I finally got a little time to install the DRAC module. Still no working speedo. I really don't understand what's going on. I'm pretty certain I wired it like the 91 suburb diagram. I'm wondering if this setup may not be compatable with the 700r4 out of the Buick roadmaster? The wire colors are different and the diagram doesn't show a DRAC module or maybe I don't have the diagram that shows it? Take a look at the attached diagram and see what you think.

Cableguy, can you look at the 1992 Buick diagram and see if it shows a DRAC module? I sure appreciate all the help! this is very frustrating!

08-11-2010, 07:56 PM	#34
mcbassin Still Learning Join Date: Jul 2009 Location: Central Oklahoma Posts: 10,108	Re: Using an electronic speedo with TBI and 700R4? Update: I finally got a little time to install the DRAC module. Still no working speedo. I really don't understand what's going on. I'm pretty certain I wired it like the 91 suburb diagram. I'm wondering if this setup may not be compatable with the 700r4 out of the Buick roadmaster? The wire colors are different and the diagram doesn't show a DRAC module or maybe I don't have the diagram that shows it? Take a look at the attached diagram and see what you think. Cableguy, can you look at the 1992 Buick diagram and see if it shows a DRAC module? I sure appreciate all the help! this is very frustrating! Attached Images __________________ Mike "69 Short Wide" My Project 86 Silverado Landen's Project Instagram: @mcbassin My Website C/10 Club Oklahoma Facebook Group Last edited by mcbassin; 08-11-2010 at 07:59 PM.