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Old 01-08-2020, 08:22 PM   #1
Factory Guy
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Squarebody digital sensing speedo?

Whats everybody here doing for a electronic speedometer if one converts to a modern engine say an LS?

Please DO NOT reply Dakota Digital, or other AFTERMARKET OPTIONS, i really love the design of the stock gauge set up, I have zero interest in switching to aftermarket.

I know you can get an old cluster out of a 1990-1992 Suburban, that is electronic speedo, but is anybody making new printed circuit sheets for those?
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Old 01-08-2020, 09:04 PM   #2
Justins76
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Re: Squarebody digital sensing speedo?

I've seen these boxes used to drive a stock mechanical speedos off a VSS.
https://www.speedhut.com/Speedbox.html
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Old 01-08-2020, 11:06 PM   #3
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Re: Squarebody digital sensing speedo?

Dakota Digital. They have a classic series that look just like the original. Best upgrade you'll ever do. Except maybe Vintage Air.
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Old 01-09-2020, 10:48 AM   #4
Factory Guy
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Re: Squarebody digital sensing speedo?

Quote:
Originally Posted by Justins76 View Post
I've seen these boxes used to drive a stock mechanical speedos off a VSS.
https://www.speedhut.com/Speedbox.html
That looks like an option.

Thanks!
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Old 01-10-2020, 07:38 AM   #5
Wgesnerjr
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Re: Squarebody digital sensing speedo?

No separate printed circuit for the 90-92 electric suburban clusters. They were made as one part number - meaning back in the day, the whole thing was replaced as a unit. Not rebuilt.
Getting a cluster is expensive. Getting the speedo out without damaging the circuit board plug is nearly impossible.
Once I got mine apart, it was cleaning and painting. I got a new lens (which is available in the LMC catalog for suburbans) to finish it off. Then had to re-pin the plug and bolt up. Not sure if a stock LS PCM is set up for the right signal form the factory. Ask that mine was changed to match the electric Speedo cluster when I sent it out to have the VAT removed.
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Old 01-10-2020, 07:57 AM   #6
mongocanfly
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Re: Squarebody digital sensing speedo?

on my 81 I used the Dakota digital box with my stock speedometer....ecd-100....https://www.summitracing.com/parts/dak-ecd-100-1/
and am using the same style DD box on my IH build
I also have a elec speedo on the shelf I pulled from a 91 burb I parted out
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Old 01-10-2020, 11:53 AM   #7
hatzie
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Re: Squarebody digital sensing speedo?

What transmission are you using?
Do you have 4wd?

If you have 4wd you can use a VSS generator inline with the cable from the squarebody transfer case and keep your original speedometer.

2wd with the LS transmission requires a box to feed the speedo or a 1990-92 Suburban or K5 cluster.
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