Electronic speedo conversion help!!

[throttle out]

I'm swapping to a 4L65E with a NP241C and will need to convert my speedometer to electric to utilize the vss signal. I've bought a 91 K5 gauge cluster to keep originality. Does anybody have experience with this swap to give me the in/outs of this conversion, or any links to guide me??
I've done a pile of searching but still not exactly clear what all needs to happen to make this happen.

Any help would be HUGE!!
Thanks in advance
Sammy

 

[1987 GMC Jimmy]

Well, you've got the VSS in the tranny and you've got the electronic speedometer. The way that this is converted from signals to readout is by the DRAC module, which I wouldn't imagine came around until 1988. Here's a picture.

 

[1987 GMC Jimmy]

Whoops. Here you go. It's just a matter of wiring up the module in between the speedo and the VSS and then teeing it into the wire for what the ECM wants to see concerning vehicle speed. They're all over eBay. If I'm incorrect or missing something, someone please let me know.

 

[throttle out]

Super helpful my friend.
I had a feeling there was something I was missing.
will do more research on the drac.

 

[1987 GMC Jimmy]

Hope you get it taken care of!

 

[throttle out]

Thanks for the help fellas!!
Scored a 91 K5 cluster in great shape and the trip reset even works!!
Because my wife kicks ass lol, she bought me a GMSPORTS 7000rpm tach fuel gauge combo!
Will be nice to have a full array of gauges to monitor vitals.

Merry Christmas yall!!!

 

[1987 GMC Jimmy]

That is pretty kick ass. Glad to hear it, bud. Did you ever get the electronic speedo stuff squared away?

 

[foamypirate]

Not sure if this helps you, but here is some info from when I did my conversion:

http://www.gmsquarebody.com/forum/showpost.php?p=301641&postcount=293

 

[throttle out]

success!!!

 

[74 Shortbed]

Came out good..