Convert 93 Silverado speedometer to turbo350 mechanical transmission

[ThomasD]

I have recently purchased a 93 Chevy 1500 with 4.3 engine. It was purchased with a standard transmission, but the trans was replaced with an older turbo 350 automatic. The Turbo350 is mechanical. What will I need to convert the mechanical transmission to the electronic speedometer in the truck At present, I don't have a working speedometer.

 

[tayto]

I would try to adapt a 40 tooth reluctor ring and VSS before trying to convert the speedo from electric to mechanical myself. it's very possible these items off a 700r4/4L60E will work on the th350

 

[tayto]

More Information for GM GENUINE 24202711

More Information for ROSTRA 501006

 

[Erik the Awful]

I put gears in my daily and now my speedo's way off. I use one of these cell phone mounts and fire up Waze when driving. It tells me both my speed and the speed limit.
www.amazon.com/gp/product/B00I3E17RA/

You can say that's a jank answer, but so is putting a TH350 in one of these trucks.