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Gm truck junkie
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3,657 Posts
Discussion Starter · #1 ·
I had 4.56 gears installed today and now have a few probs.
i figured my speedo would prob be off which it is ( shows about 90 when im goin 40)
But my abs lights are on and my cluster says i need to service my brakes.
when i get wheels and tires will it fix this prob, im on stocks right now.
 

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GMFS slowest truck :read:
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5,501 Posts
I had 4.56 gears installed today and now have a few probs.
i figured my speedo would prob be off which it is ( shows about 90 when im goin 40)
But my abs lights are on and my cluster says i need to service my brakes.
when i get wheels and tires will it fix this prob, im on stocks right now.
unless you went from 2.00ish gears, your speedo isn't reading 90 when you are going 40...its probably 20% off, give or take a little, not 125%.

ABS hates gears...get a pcm tune from justinss or another reputatble tuner and they can fix all those issues you are having. worth the 200$ to get it done.
 

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3,255 Posts
Only way to fix the abs other than kill it is have the computer "told" what gears you are running now
 
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