PerformanceTrucks.net Forums - how do you make you speedometer work with a TH400??

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- - how do you make you speedometer work with a TH400?? (https://www.performancetrucks.net/forums/gm-drivetrain-suspension-22/how-do-you-make-you-speedometer-work-th400-473927/)

denali_on_26's

Dec 15, 2010 08:40 PM

how do you make you speedometer work with a TH400??

and were do i find it?:confused:

budhayes3

Dec 15, 2010 08:49 PM

Don't know the answer, but I'm curious, is the 400 for the Denali? You're going to absolutely hate your fuel economy without overdrive, and I know that you're concerned with that from your other thread...

BlackGMC

Dec 15, 2010 08:52 PM

I beleive some use the front wheel speed sensor. Or somethng like that

Rhino79

Dec 15, 2010 09:27 PM

A 4l80e would be a turbo 400 with od, Ud like it better. I know they used to have conversion tailshaft housings and speedo pickups to adapt to newer style speedometers

denali_on_26's

Dec 15, 2010 10:14 PM

Quote:

Originally Posted by budhayes3 (Post 4597118)

:devil: :devil: :devil: :secret2::secret2: :devil: :devil: :devil:
2000 rcsb
408ci stock heads stock intake
KBracing gt-91 t6 turbo kit
:devil: :devil: :devil: :secret2::secret2: :devil: :devil::devil:

denali_on_26's

Dec 15, 2010 10:15 PM

Quote:

Originally Posted by Rhino79 (Post 4597150)

A 4l80e would be a turbo 400 with od, Ud like it better. I know they used to have conversion tailshaft housings and speedo pickups to adapt to newer style speedometers

i already sold the 80e so i could buy a TH400... this is all about performance... the speedometer would just be nice...:D

denali_on_26's

Dec 15, 2010 10:16 PM

Quote:

Originally Posted by BlackGMC (Post 4597119)

I beleive some use the front wheel speed sensor. Or somethng like that

so basically just change it in the tune... and it will be close IF THE TIRE DIAMETER IS SAME AS FACTORY??

AKlowriderZ71

Dec 15, 2010 11:26 PM

You can tune for any tire diameter.

JoeGibbSilverado

Dec 16, 2010 04:38 PM

th400s are strong as hell, the stalls dont cost as much, and around here, it cost around 500-600 to build them for racing, still have one that held up for 3 seasons with a bbc on nitrous

denali_on_26's

Dec 16, 2010 05:46 PM

Quote:

Originally Posted by JoeGibbSilverado (Post 4597589)

th400s are strong as hell, the stalls dont cost as much, and around here, it cost around 500-600 to build them for racing, still have one that held up for 3 seasons with a bbc on nitrous

:chug:

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