Innstalled 4.56 gears and speedometer is off
#1
Installed 4.56 gears and speedometer is off
2000 GMC Z71 and I like the shift points where they are, but need speedometer to read right ..... what do you guys do?
I have been thinking about buying an HP Tuners, but don't really want to spend the $650 right now.
What would be a good cheap way to change the speedometer?
THANKS!
I have been thinking about buying an HP Tuners, but don't really want to spend the $650 right now.
What would be a good cheap way to change the speedometer?
THANKS!
Last edited by ACAMS; 12-09-2017 at 01:49 PM. Reason: Fix Typo
#2
Staging Lane
Take your truck to a dyno tuner or transmission shop with the ability to reprogram the ecu to the new gears. Call around, it shouldn't cost much to get that done.
#5
Thanks for the replies, I guess I will go ahead and shell out for the HP Tuner if nobody around here can do it for me for a fair price ..... The only dyno tuner around here will want to gig me good!
#6
Staging Lane
There's no need to get on the dyno to change gear size in the ECU, they can just plug in with EFI Live to make the adjustment, should take like 15 minutes. A couple days ago I went to my tuner and had him make adjustments for the new stall tc and shift kit, I was only charged $50
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#10
makes children cry
iTrader: (5)
why not just get it tuned? there're a plethora of great tuners on here (BlackBear, Wheatley, Atomic, just to name a few) who can all do mail-order stuff or write something from a live scan & all for cheaper than buying HPT or EFI and having to learn it yourself... and your truck will run a LOT better